TY - BOOK AU - Weder,Ricardo TI - Spectral and scattering theory for wave propagation in perturbed stratified media T2 - Applied mathematical sciences SN - 0387973575 (New York) U1 - 530.124 23 PY - 1991/// CY - New York PB - Springer-Verlag KW - Wave-motion, Theory of KW - Spectral theory (Mathematics) KW - Scattering (Physics) N1 - Includes bibliographical references (p. 182-185) and index ER -