TY - JOUR A1 - Hohage, Thorsten A1 - Schmidt, Frank A1 - Zschiedrich, Lin T1 - Solving Time-Harmonic Scattering Problems Based on the Pole Condition I: Theory T2 - SIAM J. Math. Anal. Y1 - 2003 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/2213 VL - 35 IS - 1 SP - 183 EP - 210 ER -