Multicriteria Optimization in Antenna Design. (With T.S. Angell) Math. Meth. in the Appl. Sci. 15 (1992), 647-660.
The Conductive Boundary Condition for Maxwell's Equations. (With T.S. Angell) SIAM J. Appl. Math. 52 (1992), 1597-1610.
Remarks on Some Notions of Weak Solutions for the Helmholtz Equation. Appl. Anal. 47 (1992), 7-24.
The Domain Derivative and Two Applications in Inverse Scattering Theory. Inverse Problems 9 (1993), 81-96.
Uniqueness in Inverse Scattering. (With R. Kreß) Inverse Problems 9 (1993), 285-299.
Diffraction by Periodic Structures. In: Inverse Problems in Mathematical Physics. (Eds.: L. Päivärinta und E. Somersalo), Lecture Notes in Physics 422, Springer, 1993.
Target Signatures for Imperfectly Conducting Obstacles at Fixed Frequency. (With D.L. Colton) Q. J. Mech. appl. Math. 47 (1994), 1-15.
Uniqueness Theorems in Inverse Scattering Theory for Periodic Structures. Inverse Problems 10 (1994), 145-152.
An Analysis of the Coupling of Finite Element and Nyström Methods in Acoustic Scattering. (With P. Monk) IMA J. Num. Anal. 14 (1994), 523-544.
A Finite Element/Spectral Method for Approximating the Time Harmonic Maxwell System in R^n. (With P. Monk) SIAM J. Appl. Math. 55 (1995), 1324-1344.
p1-simple.pdf|A Simple Method for Solving Inverse Scattering Problems in the Resonance Region.(With D. Colton) Inverse Problems 12 (1996), 383-393.
p2-hettlich.pdf|Schiffer's Theorem in Inverse Scattering Theory for Periodic Structures. (With F. Hettlich) Inverse Problems 13 (1997), 351-361.
A Bicriterial Optimization Problem of Antenna Design. (Mit A. Jüschke und J. Jahn) Comput. Optim. and Applic. 7 (1997), 261-276.
Corrigendum to: ``A Finite Element/Spectral Method for Approximating the Time Harmonic Maxwell System in R^n. SIAM J. Appl. Math. 55 (1995), 1324-1344.'' (with P. Monk) SIAM J. Appl. Math. 58 (1998), 2024-2028.
p3-lassi.pdf|On Recovering Obstacles Inside Inhomogeneities. (With L. Päivärinta) Math. Meth. in the Appl. Sci. 21 (1998), 619-651.
p4-charact.pdf|Characterization of the Scattering Obstacle by the Spectral Data of the Far Field Operator. Inverse Problems 14 (1998), 1489-1512.
p5-ritter-nystr.pdf|The Nyström Method for Solving a Class of Singular Integral Equations and Applications in 3D-Plate Elasticity. (With S. Ritter) Math. Meth. in the Appl. Sci. 22 (1999), 177-197.
p6-inhomo.pdf|Factorization of the Far Field Operator for the Inhomogeneous Medium Case and an Application in Inverse Scattering Theory. Inverse Problems 15 (1999), 413-429.
p7-ritter-fac.pdf|A Linear Sampling Method for Inverse Scattering from an Open Arc. (With S. Ritter) Inverse Problems 16 (2000), 89-105.
The Linear Sampling Method in Inverse Scattering Theory. (Mit D. Colton und P. Monk) In: Surveys on Solution Methods for Inverse Problems (Eds.: D. Colton, H.W. Engl, A. Louis, J.R. McLaughlin, W. Rundell), Springer Vienna/New York, 2000.
p8-new-char.pdf|New Characterizations of Solutions in Inverse Scattering Theory. Applicable Analysis 76 (2000), 319-350.
p9-ChanWil-nystr.pdf|A Nyström Method for a Class of Integral Equations on the Real Line with Applications to Scattering by Diffraction Gratings and Rough Surfaces. (with A. Meier, T. Arens, S.N. Chandler-Wilde). J. Integral Equations And Applications 12 (2000), 281-321.
p10-imp-grinberg.pdf|The Linear Sampling Method in Inverse Obstacle Scattering for Impedance Boundary Conditions. (with N. Grinberg) Journal of Inverse and Ill-Posed Problems 10 (2002), 171-185.
p12-music.pdf|The MUSIC-Algorithm and the Factorization Method in Inverse Scattering Theory for Inhomogeneous Media. Inverse Problems 18 (2002), 1025-1040.
p11-FE-monk.pdf|A Finite Element Method for Approximating Electro-Magnetic Scattering from a Conducting Object (With P. Monk). Numerische Mathematik 92 (2002), 501-534.
p14-arens.pdf|The Factorization Method in Inverse Scattering from Periodic Structures. (with T.\,Arens) Inverse Problems 19 (2003), 1195-1211.
p15-mix-grinberg.pdf|The Factorization Method for Obstacles with A-priori Separated Sound-Soft and Sound-Hard Parts. (With N.\,Grinberg) Mathematics and Computers in Simulation 66 (2004), 267-279.
p13-factor.pdf|The Factorization Method for a Class of Inverse Elliptic Problems. Math. Nachrichten 278 (2005), 1-20.
Schlecht gestellte Probleme - Oder wenn das Ungenaue genauer ist. (With U. Kirchgraber and D. Stoffer) Mathematische Semesterberichte 51 (2004), 175-205.
p17-elliptic.pdf|The Factorization Method for a Class of Inverse Elliptic Problems. Math. Nachrichten 278 (2005), 258-277.
p18-BMBF.pdf|A Sampling Method for Detecting Buried Objects Using Electromagnetic Scattering. (With B. Gebauer, M. Hanke-Bourgeois, W. Muniz) Inverse Problems 21 (2005), 2035-2050.
p19-ITrP.pdf|An Integral Equation Approach and the Interior Transmission Problem for Maxwell's Equations. Inverse Problems and Imaging 1 (2006), 159-179.
p20-Layer.pdf|An Integral Equation for Maxwell's Equations in a Layered Medium with an Application to the Factorization Method. J. Integral Equations and Applications 19 (2007), 333-358.
p21-intEVP.pdf|On the Existence of Transmission Eigenvalues. Inverse Problems and Imaging 3 (2009), 155-172.
p22-IeL2.pdf|The Operator Equations of Lippmann-Schwinger Type for Acoustic and Electromagnetic Scattering Problems in $L^2$. (With A. Lechleiter) Applicable Analysis 88 (6) (2009), 807-830.
p23-ITREVP.pdf|On the Interior Transmission Eigenvalue Problem. (With F. Cakoni) Int. Jour. of Comp. Sci. Math. 3 (2010), 142-167.
p24-ImpTom.pdf|A Factorization Scheme for Determining Conductivity Contrasts in Impedance Tomography. (With S. Schmitt) Inverse Problems 27 (2011), 095005.
p25-Fluid.pdf|The Factorization Method for an Inverse Fluid-Solid Interaction Scattering Problem. (With A. Ruiz) Inverse Problems and Imaging 6 (4) (2012), 681-695.
p26-Sini-Hu.pdf|Some Inverse Problems Arizing From Elastic Scattering by Rigid Bodies. (With G. Hu and M. Sini) Inverse Problems 29 (2013), 015009.
p27-Scherzer.pdf|Simultaneous Reconstructions of Absorption Density and Wave Speed with Photoacoustic Measurements. (With O. Scherzer) SIAM J. Appl. Math.72 (5) (2012), 104005.
p28-Kleefeld.pdf|The Factorization Method for a Conductive Boundary Condition. (With A. Kleefeld) J. Int. Equ. Appl.24 (2012), 575-601.
p29-Liu.pdf|Direct and Inverse Acoustic Scattering by a Mixed-Type Scatterer. (With X. Liu) Inverse Problems 29 (6), (2013), 065005.
p30-Bond-Liu.pdf|The Factorization Method for Inverse Obstacle Scattering with Conductive Boundary Condition. (With O. Bondarenko and X. Liu) Inverse Problems 29 (9) (2013), 095021.
p31-Lechleiter.pdf|The Inside-Outside Duality for Scattering Problems by Inhomogeneous Media. (With A. Lechleiter) Inverse Problems 29 (10) (2013), 104011.
p33-FM-Liu.pdf|The Factorization Method for Inverse Acoustic Scattering by a Penetrable Anisotropic Obstacle. (With X. Liu) Mathematical Methods in the Applied Sciences 37 (8) (2014), 1159-1170.
p32-Rieder.pdf|On the Linearization of Operators Related to the Full Waveform Inversion in Seismology. (With A. Rieder) Math. Meth. Appl. Sci. 37 (18) (2014), 2995-3007
p34-Rieder.pdf|Seismic Tomography is Locally Illposed. (With A. Rieder) Inverse Problems 30 (2014), 125001
p40-Liu.pdf|A Modification of the Factorization Method for the Classical Acoustic Inverse Scattering Problems. (With X. Liu) Inverse Problems 30 (3), (2014) 035013
p36-Hayk.pdf|The Interior Transmission Eigenvalue Problem for a Spherically-Symmetric Domain with Anisotropic Medium and a Cavity. (With H. Asatryan) Journal Inverse and Ill-Posed Problems 23 (4), (2014) 299–307.
p37-sylv.pdf|A Note on Sylvester's Proof of Discreteness of Interior Transmission Eigenvalues. C. R. Acad. Sci. Paris, Ser. I (2016), http://dx.doi.org/10.1016/j.crma.2016.01.015
p38-HuYin.pdf|Factorization Method in Inverse Interaction Problems with Bi-Periodic Interfaces Between Acoustic and Elastic Waves. (With G. Hu and T. Yin) Inverse Problems and Imaging 30 (1), (2016) 103-129.
p42-Rieder.pdf|Inverse Problems for Abstract Evolution Equations With Applications in Electrodynamics And Elasticity. (with A. Rieder) Inverse Problems 32 (8), 2016
p41-Bond.pdf|The Factorization Method for Inverse Scattering by a Penetrable Anisotropic Obstacle with Conductive Boundary Condition. (With O. Bondarenko) Inverse Problems 32 (10), (2016) 105011.
p39-Born.pdf|Remarks on the Born Approximation and the Factorization Method. Applicable Analysis 96 (2017), 70-84.
p43-Waveguide1.pdf|The Limiting Absorption Principle and a Radiation Condition for the Scattering by a Periodic Layer. (With A. Lechleiter) Submitted to: SIAM J. Math. Anal.