% The references are listed in alphabetical order by the key, which is
% constructed from the last name of the authors, linked with plus signs,
% and followed by the year the paper was published.
%
% Anders Karlsson (original)
% Don Heller (maintainer)

@ARTICLE{Aberg+Kristensson+Wall95,
   AUTHOR = "{\AA}berg, I. and Kristensson, G. and Wall, D.J.N.",
   TITLE = "Propagation of transient electromagnetic waves in time-varying media---Direct and inverse scattering problems",
   JOURNAL = "Inverse Problems",
   VOLUME = "11",
   NUMBER = "1",
   PAGES = "29--49",
   YEAR = "1995"
}

@INPROCEEDINGS{Albanese+Penn+Medina92,
   AUTHOR = "Albanese, R.A. and Penn, J.W. and Medina, R.L.",
   TITLE = "An Electromagnetic Inverse Problem in Medical Science",
   PAGES = "30--41",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Ammicht+Corones+Krueger87,
   AUTHOR = "Ammicht, E. and Corones, J.P. and Krueger, R.J.",
   TITLE = "Direct and inverse scattering for viscoelastic media",
   JOURNAL = "J. Acoust. Soc. Am.",
   VOLUME = "81",
   PAGES = "827--834",
   YEAR = "1987"
}

@INPROCEEDINGS{Ayoubi92,
   AUTHOR = "Ayoubi, I.S.",
   TITLE = "Numerical Solution of the Inverse Scattering Problem for Hyperbolic Systems of ${N}$-Components in Semi-Infinite Media",
   PAGES = "187--208",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Ayoubi93,
   AUTHOR = {Ayoubi, I.S.},
   TITLE = "The {R}iemann-{G}reen Function and the Invariant Imbedding Equations for Hyperbolic Systems of First Order",
   JOURNAL = "Appl. Math. and Comp.",
   YEAR = "1993",
   VOLUME = "55",
   NUMBER= "",
   PAGES = "101--129"
}

@PHDTHESIS{Beezley85,
   AUTHOR = "Beezley, R.S.",
   TITLE = "Electromagnetic Direct and Inverse Problems for Absorbing Media",
   SCHOOL = "University of Nebraska",
   ADDRESS = "Lincoln, Nebraska",
   YEAR = "1985"
}

@ARTICLE{Beezley+Krueger85,
   AUTHOR = "Beezley, R.S. and Krueger, R.J.",
   TITLE = "An electromagnetic inverse problem for dispersive media",
   JOURNAL = "J. Math. Phys.",
   VOLUME = "26",
   NUMBER = "2",
   PAGES = "317--325",
   YEAR = "1985"
}

@INPROCEEDINGS{Brent+Fishman92,
   AUTHOR = "Brent, R.I. and Fishman, L.",
   TITLE = "Derivation of Extended Parabolic theories for Vector and Electromagnetic Wave Propagation",
   PAGES = "90--102",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@PHDTHESIS{Bui93,
   AUTHOR = "Dat Duc Bui",
   TITLE = "The Inverse Electromagnetic Scattering Problem for a Spatially Homogeneous, Dispersive and Dissipative Medium",
   SCHOOL = "Texas A\&M University",
   YEAR = "1993",
   ADDRESS = "College Station, Texas"
}

@ARTICLE{Cao+He94,
   AUTHOR = "Cao, J. and He, S.",
   TITLE = "Closed form solutions for the transient reflected pressure for a point source above an acoustic half-space with an exponentially stratified density",
   JOURNAL = "J. Acoust. Soc. Am.",
   YEAR = "1994",
   VOLUME = "96",
   NUMBER= "4",
   PAGES = "2516--2525"
}

@INPROCEEDINGS{Cheney+Isaacson92,
   AUTHOR = "Cheney, M. and Isaacson, D.",
   TITLE = "Invariant Imbedding, Layer-Stripping, and Impedance Imaging",
   PAGES = "42--50",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Corones+Krueger83,
   AUTHOR = "Corones, J.P. and Krueger, R.J.",
   TITLE = "Obtaining Scattering Kernels Using Invariant Imbedding",
   JOURNAL = "J. Math. Anal. Appl.",
   VOLUME = "95",
   PAGES = "393--415",
   YEAR = "1983"
}

@ARTICLE{Corones+Davison+Krueger83a,
   AUTHOR = "Corones, J.P. and Davison, M.E. and Krueger, R.J.",
   TITLE = "Direct and inverse scattering in the time domain via invariant imbedding equations",
   JOURNAL = "J. Acoust. Soc. Am.",
   VOLUME = "74",
   NUMBER = "5",
   PAGES = "1535--1541",
   YEAR = "1983"
}

@INPROCEEDINGS{Corones+Davison+Krueger83b,
   AUTHOR = "Corones, J.P. and Davison, M.E. and Krueger, R.J.",
   TITLE = "Wave splittings, invariant imbedding and inverse scattering",
   BOOKTITLE = "Inverse Optics, Proceedings of the SPIE",
   YEAR = "1983",
   EDITOR = "Devaney, A.J.",
   PAGES = "102--106",
   ORGANIZATION = "Proc. SPIE 413",
   ADDRESS = "SPIE Bellingham, WA"
}

@INPROCEEDINGS{Corones+Davison+Krueger83c,
   AUTHOR = "Corones, J.P. and Davison, M.E. and Krueger, R.J.",
   TITLE = "The effects of dissipation in one-dimensional inverse problems",
   BOOKTITLE = "Inverse Optics, Proceedings of the SPIE",
   YEAR = "1983",
   EDITOR = "Devaney, A.J.",
   PAGES = "107--114",
   ORGANIZATION = "Proc. SPIE 413",
   ADDRESS = "SPIE Bellingham, WA"
}

@INPROCEEDINGS{Corones+Davison+Krueger85,
   AUTHOR = "Corones, J.P. and Davison, M.E. and Krueger, R.J.",
   TITLE = "Dissipative inverse problems in the time domain",
   BOOKTITLE = "Inverse Methods in Electromagnetic Imaging",
   YEAR = "1985",
   EDITOR = "Boerner, W-M.",
   PAGES = "121--130",
   VOLUME = "143",
   ORGANIZATION = "NATO ASI series, Series C",
   ADDRESS = "Reidel Dordrecht"
}

@INPROCEEDINGS{Corones+Krueger+Weston85,
   AUTHOR = "Corones, J.P. and Krueger, R.J. and Weston, V.H.",
   TITLE = "Some recent results in inverse scattering theory",
   BOOKTITLE = "Inverse Problems of Acoustic and Elastic Waves",
   YEAR = "1985",
   EDITOR = "Santosa, F. and Pao, Y. and Symes, W. and Holland, C.",
   PAGES = "65--81",
   ORGANIZATION = "SIAM",
   ADDRESS = "Philadelphia"
}

@ARTICLE{Corones+Karlsson88,
   AUTHOR = "Corones, J.P. and Karlsson, A.",
   TITLE = "Transient direct and inverse scattering for inhomogeneous viscoelastic media: obliquely incident {SH} mode",
   JOURNAL = "Inverse Problems",
   VOLUME = "4",
   PAGES = "643--660",
   YEAR = "1988"
}

@ARTICLE{Corones+Stewart93,
   AUTHOR = "Corones, J.P. and Stewart, R.",
   TITLE = "Transient Reflectivity for Anisotropic Inhomogeneous Media",
   JOURNAL = "Journal of the Optical Society of America. A",
   VOLUME = "10",
   PAGES = "1941--9",
   YEAR = "1993"
}

@INPROCEEDINGS{Corones+Sun92,
   AUTHOR = "Corones, J.P. and Sun, Z.",
   TITLE = "Transient reflection and transmission problems for fluid-saturated porous media",
   PAGES = "153--168",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Corones+Sun93,
   AUTHOR = "Corones, J.P. and Sun, Z.",
   TITLE = "Simultaneous reconstruction of material and transient source parameters using the invariant imbedding method",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1993",
   VOLUME = "34",
   NUMBER= "5",
   PAGES = "1824--1845"
}

@PROCEEDINGS{SIAM92,
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   TITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992",
   NOTE = "Symposium held in Albuquerque, April 1990"
}

@ARTICLE{Davison+Winther94,
   AUTHOR = "Davison, M.E. and Winther, R.C.",
   TITLE = "A general approach to splitting and invariant imbedding for linear wave equations",
   JOURNAL = "J. Math. Anal. Appl.",
   YEAR = "1994",
   VOLUME = "188",
   NUMBER= "1",
   PAGES = "158--181"
}

@PHDTHESIS{Dougherty86,
   AUTHOR = "Dougherty, R.P.",
   TITLE = "Direct and inverse scattering of classical waves at oblique incidence to stratified media via invariant imbedding equations",
   SCHOOL = "Iowa State University",
   YEAR = "1986",
   ADDRESS = "Ames, Iowa"
}

@INPROCEEDINGS{Faber+Wing+Zahrt92,
   AUTHOR = "Faber, V. and Wing, G.M. and Zahrt, J.",
   TITLE = "Inverse Problems, {SVD} and pseudo {SVD}",
   PAGES = "230--240",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Friden+Kristensson+Stewart93,
   AUTHOR = "Frid\'en, J. and Kristensson, G. and Stewart, R.D.",
   TITLE = "Transient Electromagnetic Wave Propagation in Anisotropic Dispersive Media",
   JOURNAL = "J. Opt. Soc. Am. A",
   VOLUME = "10",
   NUMBER = "12",
   PAGES = "2618--2627",
   YEAR = "1993"
}

@ARTICLE{Friden94,
   AUTHOR = "Frid\'en, J.",
   TITLE = "Inverse Scattering for Anisotropic Mirror Image Symmetric Media",
   JOURNAL = "Inverse Problems",
   VOLUME = "10",
   NUMBER = "5",
   PAGES = "1133--1144",
   YEAR = "1994"
}

@ARTICLE{Fuks+Karlsson+Larson94,
   AUTHOR = "Fuks, P. and Karlsson, A. and Larson, G.",
   TITLE = "Direct and inverse scattering for dispersive media",
   JOURNAL = "Inverse Problems",
   VOLUME = "10",
   NUMBER = "3",
   PAGES = "555--571",
   YEAR = "1994"
}

@INPROCEEDINGS{Gilbert+Xu92,
   AUTHOR = "Gilbert, R.P. and Xu, Y.",
   TITLE = "Generalized {H}erglotz Functions and Inverse Scattering Problems in a finite depth ocean",
   PAGES = "216--229",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@INPROCEEDINGS{Grunbaum92,
   AUTHOR = {Gr\"unbaum, F.A.},
   TITLE = "An Inverse Problem in Transport Theory:  Diffuse Tomography",
   PAGES = "209--215",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{He92a,
   AUTHOR = "He, S.",
   TITLE = "Factorization of a dissipative wave equation and the {G}reen function technique for axially symmetric fields in a stratified slab",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1992",
   VOLUME = "33",
   NUMBER= "3",
   PAGES = "953--966"
}

@ARTICLE{He92b,
   AUTHOR = "He, S.",
   TITLE = "Time-harmonic {G}reen functions technique and wave propagation in a stratified nonreciprocal chiral slab with multiple discontinuities",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1992",
   VOLUME = "33",
   NUMBER= "12",
   PAGES = "4103--4110"
}

@ARTICLE{He+Strom91,
   AUTHOR = {He, S. and Str\"om, S.},
   TITLE = "The electromagnetic scattering problem in the time domain for a
   dissipative slab and a point source using invariant imbedding",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1991",
   VOLUME = "32",
   NUMBER= "12",
   PAGES = "3529--3539"
}

@ARTICLE{He+Strom92a,
   AUTHOR = {He, S. and Str\"om, S.},
   TITLE = "The electromagnetic inverse problem in the time domain for a
   dissipative slab and a point source using invariant imbedding:
   {R}econstruction of the permittivity and conductivity",
   JOURNAL = "J. Comp. Appl. Math.",
   YEAR = "1992",
   VOLUME = "42",
   NUMBER= "",
   PAGES = "137--155"
}

@ARTICLE{He+Strom92b,
   AUTHOR = {He, S. and Str\"om, S.},
   TITLE = "Time domain wave splitting approach to transmission along a non-uniform ${LCRG}$ line",
   JOURNAL = "J. Electro. Waves Applic.",
   YEAR = "1992",
   VOLUME = "6",
   NUMBER= "8",
   PAGES = "995--1014"
}

@ARTICLE{He+Weston92,
   AUTHOR = "He, S. and Weston, V.H.",
   TITLE = "Inverse problem for the dissipative wave equation in a stratified half-space and linearization of the imbedding equation",
   JOURNAL = "Inverse Problems",
   YEAR = "1992",
   VOLUME = "8",
   NUMBER= "3",
   PAGES = "435--455"
}

@ARTICLE{He+Hu+Strom93,
   AUTHOR = {He, S. and Hu, Y. and Str\"om, S.},
   TITLE = "Time domain {G}reen functions technique for a point source over a dissipative stratified half-space with a phase velocity mismatch at the surface",
   JOURNAL = "Wave Motion",
   YEAR = "1993",
   VOLUME = "17",
   NUMBER= "3",
   PAGES = "241--254"
}

@ARTICLE{He93a,
   AUTHOR = "He, S.",
   TITLE = "Frequency and time domain {G}reen functions technique for nonuniform ${LCRG}$ transmission lines with frequency-dependent parameters",
   JOURNAL = "J. Electro. Waves Applic.",
   YEAR = "1993",
   VOLUME = "7",
   NUMBER= "1",
   PAGES = "31--48"
}

@ARTICLE{He93b,
   AUTHOR = "He, S.",
   TITLE = "A compact {G}reen function approach to the time domain direct and inverse problems for a stratified dissipative slab",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1993",
   VOLUME = "34",
   NUMBER= "10",
   PAGES = "4628--4645"
}

@ARTICLE{He93c,
   AUTHOR = "He, S.",
   TITLE = "Wave propagation through a dielectric-uniaxial bianisotropic interface and the computation of {B}rewster angles",
   JOURNAL = "J. Opt. Soc. Am. A",
   YEAR = "1993",
   VOLUME = "10",
   NUMBER= "11",
   PAGES = "2402--2409"
}

@ARTICLE{He+Hu93,
   AUTHOR = "He, S. and Hu, Y.",
   TITLE = "Electromagnetic scattering for a stratified bi-isotropic (nonreciprocal chiral) slab: numerical computations",
   JOURNAL = "IEEE Trans. Antennas Propagat.",
   YEAR = "1993",
   VOLUME = "41",
   NUMBER= "8",
   PAGES = "1057--1062"
}

@ARTICLE{He+Lindell93,
   AUTHOR = "He, S. and Lindell, I.",
   TITLE = "Propagating eigenmodes for plane waves in a uniaxial bianisotropic medium and reflection from a planar interface",
   JOURNAL = "IEEE Trans. Antennas Propagat.",
   YEAR = "1993",
   VOLUME = "41",
   NUMBER= "12",
   PAGES = "1659--1664"
}

@ARTICLE{He+Kabanikhin+Romanov+Strom93,
   AUTHOR = {He, S. and Kabanikhin, S.I. and Romanov, V.G. and Str\"om, S.},
   TITLE = "Analysis of the {G}reen function approach to one-dimensional inverse problems. {P}art {I}: One parameter reconstruction",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1993",
   VOLUME = "34",
   NUMBER= "12",
   PAGES = "5724--5746"
}

@ARTICLE{He+Karlsson93,
   AUTHOR = "He, S. and Karlsson, A.",
   TITLE = "Time domain {G}reen function technique for a point source over a dissipative stratified half-space",
   JOURNAL = "Radio Science",
   YEAR = "1993",
   VOLUME = "28",
   NUMBER = "4",
   PAGES = "513--526"
}

@ARTICLE{He94a,
   AUTHOR = "He, S.",
   TITLE = "An inverse approach to an anisotropic wave equation in a stratified half-space",
   JOURNAL = "J.\ Inverse and Ill-posed Problems",
   YEAR = "1994",
   VOLUME = "2",
   NUMBER= "1",
   PAGES = "49--60"
}

@ARTICLE{He94b,
   AUTHOR = "He, S.",
   TITLE = "The correct {ETLC} model for anisotropic lossy materials---a comment on `{T}ransient propagation in anisotropic luminated composites'",
   JOURNAL = "IEEE Trans. Electromagn. Compatibility",
   YEAR = "1994",
   VOLUME = "36",
   NUMBER= "4",
   PAGES = "409--410"
}

@ARTICLE{He+Hu+Strom94,
   AUTHOR = {He, S. and Hu, Y. and Str\"om, S.},
   TITLE = "Electromagnetic reflection and transmission for a stratified bianisotropic slab",
   JOURNAL = "IEEE Trans. Antennas Propagat.",
   YEAR = "1994",
   VOLUME = "42",
   NUMBER= "6",
   PAGES = "856--858"
}

@ARTICLE{He+Romanov+Strom94,
   AUTHOR = {He, S. and Romanov, V.G. and Str\"om, S.},
   TITLE = "Analysis of the {G}reen function approach to one-dimensional inverse problems. {P}art {II}: {S}imultaneous reconstruction of two parameters",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1994",
   VOLUME = "35",
   NUMBER= "5",
   PAGES = "2315--2335"
}

@ARTICLE{He95a,
   AUTHOR = "He, S.",
   TITLE = "Explicit solution for the lossy exponential transmission line problem in the frequency and the time domain",
   JOURNAL = "J. Electro. Waves Applic.",
   YEAR = "1995",
   VOLUME = "9",
   NUMBER= "4",
   PAGES = "521--540"
}

@ARTICLE{He+Norgren+Strom95,
   AUTHOR = {He, S. and Norgren, M. and Str\"om, S.},
   TITLE = "Wave propagation in a stratified chiral slab with multiple discontinuities: oblique incidence",
   JOURNAL = "{PIER} {S}pecial {I}ssue on {B}i-isotropic {M}edia and {A}pplications, {E}ds.: {A}.\ {P}riou",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{He95b,
   AUTHOR = "He, S.",
   TITLE = "A useful fractional linear transformation for the {R}icatti equation for reflection coefficients",
   JOURNAL = "Microwave Opt. Techn. Lett.",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{He+Strom95,
   AUTHOR = {He, S. and Str\"om, S.},
   TITLE = "Time-domain propagating modes in a finitely conducting half-space and calculation of the transient reflection",
   JOURNAL = "IEEE Trans. Electromagn. Compatibility",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Hellberg+Karlsson+Tharning92,
   AUTHOR = {Hellberg, R. and Karlsson, A. and Th\"arning, P.},
   TITLE = "Non-reflecting dispersive media",
   JOURNAL = "Smart Materials and Structures",
   VOLUME = "1",
   NUMBER = "",
   PAGES = "341--346",
   YEAR = "1992"
}

@ARTICLE{Hellberg+Karlsson95,
   AUTHOR = "Hellberg, R. and Karlsson, A.",
   TITLE = "Design of reflectionless media for transient electromagnetic waves",
   JOURNAL = "Inverse Problems",
   VOLUME = "11",
   PAGES = "147--164",
   YEAR = "1995"
}

@ARTICLE{Isakov+Sun92,
   AUTHOR = {Isakov, V. and Sun, Z.},
   TITLE = "Stability estimates for hyperbolic inverse problems with local boundary data",
   JOURNAL = "Inverse Problems",
   YEAR = "1992",
   VOLUME = "8",
   NUMBER= "",
   PAGES = "193--206"
}

@ARTICLE{Karlsson87,
   AUTHOR = "Karlsson, A.",
   TITLE = "Inverse scattering for viscoelastic media using transmission data",
   JOURNAL = "Inverse Problems",
   VOLUME = "3",
   PAGES = "691--709",
   YEAR = "1987"
}

@ARTICLE{Karlsson+Kristensson90,
   AUTHOR = "Karlsson, A. and Kristensson, G.",
   TITLE = "Wave splitting in the time domain for a radially symmetric geometry",
   JOURNAL = "Wave Motion",
   VOLUME = "12",
   NUMBER = "3",
   PAGES = "197--211",
   YEAR = "1990"
}

@ARTICLE{Karlsson+Kristensson92,
   AUTHOR = "Karlsson, A. and Kristensson, G.",
   TITLE = "Constitutive relations, dissipation and reciprocity for the {M}axwell equations in the time domain",
   JOURNAL = "J. Electro. Waves Applic.",
   VOLUME = "6",
   NUMBER = "5/6",
   PAGES = "537--551",
   YEAR = "1992"
}

@INPROCEEDINGS{Karlsson+Kreider+Kristensson92,
   AUTHOR = "Karlsson, A. and Kreider, K. and Kristensson, G.",
   TITLE = "Wave splitting and imbedding equations for a spherically symmetric dispersive medium",
   PAGES = "103--113",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Karlsson+Otterheim+Stewart93a,
   AUTHOR = "Karlsson, A. and Otterheim, H. and Stewart, R.",
   TITLE = "Transient wave propagation in composite media: {G}reen-functions approach",
   JOURNAL = "J. Opt. Soc. Am. A",
   YEAR = "1993",
   VOLUME = "10",
   NUMBER = "5",
   PAGES = "886--895"
}

@ARTICLE{Karlsson+Otterheim+Stewart93b,
   AUTHOR = "Karlsson, A. and Otterheim, H. and Stewart, R.",
   TITLE = "Electromagnetic fields in an inhomogeneous plasma from obliquely incident transient plane waves",
   JOURNAL = "Radio Science",
   YEAR = "1993",
   VOLUME = "28",
   NUMBER = "3",
   PAGES = "365--378"
}

@ARTICLE{Karlsson+Stewart95,
   AUTHOR = "Karlsson, A. and Stewart, R.",
   TITLE = "Wave propagators for transient waves in periodic media",
   JOURNAL = "J. Opt. Soc. Am. A",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Kreider89a,
   AUTHOR = {Kreider, K.},
   TITLE = "Time-dependent inverse scattering from gradient-type interfaces using an exact solution",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1989",
   VOLUME = "30",
   NUMBER= "1",
   PAGES = "53--58"
}

@ARTICLE{Kreider89b,
   AUTHOR = {Kreider, K.},
   TITLE = "A wave splitting approach to time dependent inverse scattering for the stratified cylinder",
   JOURNAL = "SIAM J. Appl. Math.",
   YEAR = "1989",
   VOLUME = "49",
   NUMBER= "3",
   PAGES = "932--943"
}

@ARTICLE{Kreider89c,
   AUTHOR = {Kreider, K.},
   TITLE = "Time-dependent direct and inverse scattering for the dispersive cylinder",
   JOURNAL = "Wave Motion",
   YEAR = "1989",
   VOLUME = "11",
   NUMBER= "",
   PAGES = "427--440"
}

@ARTICLE{Kreider90,
   AUTHOR = {Kreider, K.},
   TITLE = "Time-dependent linear transport via {G}reen's functions",
   JOURNAL = "Transport Theory and Statistical Physics",
   YEAR = "1990",
   VOLUME = "18",
   NUMBER= "1",
   PAGES = "513--525"
}

@INPROCEEDINGS{Kristensson91,
   AUTHOR = "Kristensson, G.",
   TITLE = "Direct and inverse scattering problems in dispersive media---{G}reen's functions and invariant imbedding techniques",
   BOOKTITLE = "Direct and Inverse Boundary Value Problems",
   SERIES = "Methoden und Verfahren der Mathematischen Physik, Band 37",
   EDITOR = "R. Kleinman and R. Kress and E. Martensen",
   ADDRESS = "Mathematisches Forschungsinstitut Oberwolfach, FRG",
   PAGES = "105--119",
   YEAR = "1991"
}

@INPROCEEDINGS{Kristensson+Karlsson+Otterheim92,
   AUTHOR = "Kristensson, G. and Karlsson, A. and Otterheim, H.",
   TITLE = "Transient wave propagation in gyrotropic media",
   PAGES = "77--89",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Kristensson+Krueger86a,
   AUTHOR = "Kristensson, G. and Krueger, R.J.",
   TITLE = "Direct and inverse scattering in the time domain for a dissipative wave equation. {P}art 1: Scattering operators",
   JOURNAL = "J. Math. Phys.",
   VOLUME = "27",
   NUMBER = "6",
   PAGES = "1667--1682",
   YEAR = "1986"
}

@ARTICLE{Kristensson+Krueger86b,
   AUTHOR = "Kristensson, G. and Krueger, R.J.",
   TITLE = "Direct and inverse scattering in the time domain for a dissipative wave equation. {P}art 2: Simultaneous reconstruction of dissipation and phase velocity profiles",
   JOURNAL = "J. Math. Phys.",
   VOLUME = "27",
   NUMBER = "6",
   PAGES = "1683--1693",
   YEAR = "1986"
}

@ARTICLE{Kristensson+Krueger87,
   AUTHOR = "Kristensson, G. and Krueger, R.J.",
   TITLE = "Direct and inverse scattering in the time domain for a dissipative wave equation. {P}art 3: Scattering operators in the presence of a phase velocity mismatch",
   JOURNAL = "J. Math. Phys.",
   VOLUME = "28",
   NUMBER = "2",
   PAGES = "360--370",
   YEAR = "1987"
}

@ARTICLE{Kristensson+Krueger89,
   AUTHOR = "Kristensson, G. and Krueger, R.J.",
   TITLE = "Direct and inverse scattering in the time domain for a dissipative wave equation. {P}art 4: Use of phase velocity mismatches to simplify inversions",
   JOURNAL = "Inverse Problems",
   VOLUME = "5",
   NUMBER = "3",
   PAGES = "375--388",
   YEAR = "1989"
}

@INPROCEEDINGS{Kristensson+Krueger92,
   AUTHOR = "Kristensson, G. and Krueger, R.J.",
   TITLE = "Time domain inversion techniques for electromagnetic scattering problems",
   PAGES = "1--29",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Kristensson+Krueger+Winther91,
   AUTHOR = "Kristensson, G. and Krueger, J.K. and Winther, R.C.",
   TITLE = "Existence and construction of solutions of dissipative inverse problems",
   JOURNAL = "J. Math. Anal. Appl.",
   VOLUME = "157",
   NUMBER = "2",
   PAGES = "542--554",
   YEAR = "1991"
}

@ARTICLE{Kristensson+Rikte92,
   AUTHOR = "Kristensson, G. and Rikte, S.",
   TITLE = "Scattering of Transient Electromagnetic Waves in Reciprocal
   Bi-Isotropic Media",
   JOURNAL = "J. Electro. Waves Applic.",
   VOLUME = "6",
   NUMBER = "11",
   PAGES = "1517--1535",
   YEAR = "1992"
}

@ARTICLE{Kristensson+Rikte93a,
   AUTHOR = "Kristensson, G. and Rikte, S.",
   TITLE = "Transient wave propagation in reciprocal bi-isotropic media at oblique incidence",
   JOURNAL = "J. Math. Phys.",
   VOLUME = "34",
   NUMBER = "4",
   PAGES = "1339--1359",
   YEAR = "1993"
}

@INCOLLECTION{Kristensson+Rikte93b,
   AUTHOR = "Kristensson, G. and Rikte, S.",
   TITLE = "The Inverse Scattering Problem for a Homogeneous Bi-isotropic Slab Using Transient Data",
   BOOKTITLE = "Inverse Problems in Mathematical Physics",
   PUBLISHER = "Springer",
   YEAR = "1993",
   EDITOR = {P\"aiv\"arinta, L. and Somersalo, E.},
   ADDRESS = "Berlin",
   PAGES = "112--125"
}

@ARTICLE{Kristensson95,
   AUTHOR = "Kristensson, G.",
   TITLE = "Transient Electromagnetic Wave Propagation in Wave Guides",
   JOURNAL = "J. Electro. Waves Applic.",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Krueger+Ochs89,
   AUTHOR = "Krueger, R.J. and Ochs, Jr., R.L.",
   TITLE = "A {G}reen's Function Approach to the Determination of Internal Fields",
   JOURNAL = "Wave Motion",
   VOLUME = "11",
   PAGES = "525--543",
   YEAR = "1989"
}

@ARTICLE{Lundstedt95,
   AUTHOR = "Lundstedt, J.",
   TITLE = "Condition for distortionfree transmission lines with a nonuniform characteristic impedance",
   JOURNAL = "IEEE Trans. Microwave Theory Tech.",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Lundstedt+He94,
   AUTHOR = "Lundstedt, J. and He, S.",
   TITLE = "Signal restoration after transmission through a nonuniform ${LCRG}$ line",
   JOURNAL = "IEEE Trans. Microwave Theory Tech.",
   YEAR = "1994",
   VOLUME = "42",
   NUMBER= "11",
   PAGES = "2087--2092"
}

@ARTICLE{Lundstedt+He95,
   AUTHOR = "Lundstedt, J. and He, S.",
   TITLE = "Time-domain direct and inverse problems for a nonuniform ${LCRG}$ line with internal sources",
   JOURNAL = "IEEE Trans. Electromagn. Compatibility",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Lundstedt+Strom95,
   AUTHOR = {Lundstedt, J. and Str\"om, S.},
   TITLE = "Simultaneous reconstruction of two parameters from the transient response of a nonuniform ${LCRG}$ transmission line",
   JOURNAL = "J. Electro. Waves Applic.",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Norgren+He94,
   AUTHOR = "Norgren, M. and He, S.",
   TITLE = "Electromagnetic reflection and transmission for a dielectric-${\Omega}$ interface and a ${\Omega}$ slab",
   JOURNAL = "Int. J. Infrared and MM Waves",
   YEAR = "1994",
   VOLUME = "15",
   NUMBER= "9",
   PAGES = "1537--1554"
}

@ARTICLE{Norgren+He95a,
   AUTHOR = "Norgren, M. and He, S.",
   TITLE = "A general scheme for the electromagnetic reflection and transmission for composite structures of complex materials",
   JOURNAL = "Proc. IEE, Part H",
   YEAR = "1995",
   VOLUME = "142",
   NUMBER= "1",
   PAGES = "52--56"
}

@ARTICLE{Norgren+He95b,
   AUTHOR = "Norgren, M. and He, S.",
   TITLE = "Reconstruction of the constitutive parameters for an ${\Omega}$ material in a rectangular waveguide",
   JOURNAL = "IEEE Trans. Microwave Theory Tech.",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Ochs+Vogel91,
   AUTHOR = {Ochs, Jr., R.L. and Vogel, C.R.},
   TITLE = "The optimization of electromagnetic energy within a dissipative slab",
   JOURNAL = "Wave Motion",
   YEAR = "1991",
   VOLUME = "14",
   NUMBER= "",
   PAGES = "69--84"
}

@INPROCEEDINGS{Ochs+Vogel92,
   AUTHOR = "Ochs, Jr., R.L. and Vogel, C.R.",
   TITLE = "Energy Optimization in Electromagnetic Wave Propagation",
   PAGES = "51--63",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Ochs+Vogel93a,
   AUTHOR = {Ochs, Jr., R.L. and Vogel, C.R.},
   TITLE = "The optimization of dissipation in dispersive dielectric slabs",
   JOURNAL = "Wave Motion",
   YEAR = "1993",
   VOLUME = "17",
   NUMBER= "",
   PAGES = "349--363"
}

@ARTICLE{Ochs+Vogel93b,
   AUTHOR = {Ochs, Jr., R.L. and Vogel, C.R.},
   TITLE = "Analysis of signal optimization problems for dielectric media",
   JOURNAL = "J. Optimization Theory and Appl.",
   YEAR = "1993",
   VOLUME = "79",
   NUMBER= "",
   PAGES = "237--251"
}

@ARTICLE{Olsson+Kristensson94,
   AUTHOR = "Olsson, P. and Kristensson, G.",
   TITLE = "Wave splitting of the {T}imoshenko beam equation in the time domain",
   JOURNAL = {Zeitschrift f\"ur andgewandte Mathematik und Physik},
   VOLUME = "45",
   NUMBER = "",
   PAGES = "866--881",
   YEAR = "1994"
}

@PHDTHESIS{Otterheim93,
   AUTHOR = "Otterheim, H.",
   TITLE = "Time domain direct and inverse scattering for gyrotropic media",
   SCHOOL = "Royal Institute of Technology",
   YEAR = "1993",
   ADDRESS = "Stockholm, Sweden"
}

@INPROCEEDINGS{Pilant+Rundell92,
   AUTHOR = "Pilant, M. and Rundell, W.",
   TITLE = "Identification of nonlinear flux terms in a parabolic Initial-boundary value problem",
   PAGES = "241--257",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@INCOLLECTION{Rikte93,
   AUTHOR = "Rikte, S.",
   TITLE = "Transient {I}nverse {S}cattering in {D}ispersive {H}omogeneous {B}i-isotropic {M}edia",
   BOOKTITLE = "Mathematical and Numerical Aspects of Wave Propagation",
   PUBLISHER = "SIAM",
   YEAR = "1993",
   EDITOR = "Kleinman, R. and Angell, T. and Colton, D. and Santosa, F. and Stakgold, I."
}

@ARTICLE{Rikte95,
   AUTHOR = "Rikte, S.",
   TITLE = "Causality theorems and {G}reen functions for transient wave propagation problems in stratified complex media",
   JOURNAL = "SIAM J. Math. Anal.",
   YEAR = "1995",
   NOTE = "(in press)"
}

@INPROCEEDINGS{Roberts+Hobart90,
   AUTHOR = {Roberts, T.M. and Hobart, M.},
   TITLE = "Elementary Inversion, Energy Velocity, and Generalized Sommerfeld Theorem",
   BOOKTITLE = "Digital Image Synthesis and Inverse Optics, Proc SPIE, vol 1351",
   EDITOR = "Gmitro, A.F. and Idell, P.S. and LaHaie, I.J.",
   PUBLISHER = "SPIE",
   ADDRESS = "",
   YEAR = "1990"
}

@ARTICLE{Roberts+Hobart92,
   AUTHOR = {Roberts, T.M. and Hobart, M.},
   TITLE = "Energy Velocity, Damping, and Elementary Inversion",
   JOURNAL = "J. Opt. Soc. Am. A",
   YEAR = "1992",
   VOLUME = "9",
   NUMBER= "",
   PAGES = "1091--1101"
}

@INPROCEEDINGS{Roberts92,
   AUTHOR = "Roberts, T.M.",
   TITLE = "Causality Theorems",
   PAGES = "114--128",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@INPROCEEDINGS{Roberts93,
   AUTHOR = "Roberts, T.M.",
   TITLE = {An Inverse Scattering Algorithm for Layered Electromagnetically Dispersive Media},
   BOOKTITLE = "Second International Conference on Mathematical and Numerical Aspects of Wave Propagation",
   EDITOR = "Kleinman, R. and Colton, D. and Santosa, F. and Stakgold, I.",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1993"
}

@PHDTHESIS{Stewart89,
   AUTHOR = "Stewart, R.D.",
   TITLE = "Transient electromagnetic scattering on anisotropic media",
   SCHOOL = "Iowa State University",
   YEAR = "1989",
   ADDRESS = "Ames, Iowa"
}

@ARTICLE{Sun92a,
   AUTHOR = {Sun, Z.},
   TITLE = "Direct scattering and reconstruction of internal source",
   JOURNAL = "Wave Motion",
   YEAR = "1992",
   VOLUME = "16",
   NUMBER= "",
   PAGES = "249--263"
}

@INPROCEEDINGS{Sun92b,
   AUTHOR = "Sun, Z.",
   TITLE = "Time domain direct scattering and inverse source problems",
   PAGES = "64--76",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Sun95,
   AUTHOR = "Sun, Z.",
   TITLE = "Reconstruction of source and medium parameters via wave splitting and {G}reen function equations",
   JOURNAL = "SIAM J. Appl. Math.",
   YEAR = "1995",
   NOTE = "(in press)"
}

@ARTICLE{Sun+Corones92,
   AUTHOR = {Sun, Z. and Corones, J.P.},
   TITLE = "Invariant imbedding method and inverse source problems",
   JOURNAL = "Inverse Problems in Scattering and Imaging, SPIE Proc.",
   YEAR = "1992",
   VOLUME = "1767",
   NUMBER= "",
   PAGES = "13--20"
}

@ARTICLE{Sun+Wickham93a,
   AUTHOR = {Sun, Z. and Wickham, G.},
   TITLE = "The inversion of transient reflection data to determine solid grain structure",
   JOURNAL = "Wave Motion",
   YEAR = "1993",
   VOLUME = "18",
   NUMBER= "",
   PAGES = "143--162"
}

@ARTICLE{Sun+Wickham93b,
   AUTHOR = {Sun, Z. and Wickham, G.},
   TITLE = "The reconstruction of solid grain structure using invariant imbedding and the {G}reen function method",
   JOURNAL = "Theoretical and Computational Acoustics",
   YEAR = "1993",
   VOLUME = "",
   NUMBER= "",
   PAGES = ""
}

@INPROCEEDINGS{Vogel92,
   AUTHOR = "Vogel, C.R.",
   TITLE = "Wave Splitting for Some Nonhyperbolic Time-Dependent {PDE}s",
   PAGES = "129--138",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Wall91,
   AUTHOR = {Wall, D.J.N.},
   TITLE = "On some differential equations arising in time domain scattering problems for a dissipative wave equation",
   JOURNAL = "Transport Theory and Statistical Physics",
   YEAR = "1991",
   VOLUME = "20",
   NUMBER= "",
   PAGES = "29--54"
}

@INPROCEEDINGS{Wall92,
   AUTHOR = "Wall, D.J.N.",
   TITLE = "On the numerical solution of a functional differential equation pertaining to a wave equation",
   PAGES = "169--186",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Weston74,
   AUTHOR = {Weston, V.H.},
   TITLE = "On inverse scattering",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1974",
   VOLUME = "15",
   NUMBER= "",
   PAGES = "209--213"
}

@INPROCEEDINGS{Weston92,
   AUTHOR = "Weston, V.H.",
   TITLE = "Root of a Second Order Hyperbolic Differential Operator and Wave Splitting",
   PAGES = "139--152",
   EDITOR = "Corones, J.P. and Kristensson, G. and Nelson, P. and Seth, D.L.",
   BOOKTITLE = "Invariant Imbedding and Inverse Problems",
   PUBLISHER = "SIAM",
   ADDRESS = "Philadelphia",
   YEAR = "1992"
}

@ARTICLE{Weston+Krueger73,
   AUTHOR = {Weston, V.H. and Krueger, R.J.},
   TITLE = "On the inverse problem for a hyperbolic dispersive partial differential equation, {II}",
   JOURNAL = "J. Math. Phys.",
   YEAR = "1973",
   VOLUME = "",
   NUMBER= "",
   PAGES = "406--408"
}