Achenbach, J. D. Ray methods for waves in elastic solids : with applications to scattering by cracks / J.D. Achenbach, A.K. Gautesen, and H. McMaken. - Boston : Pitman Advanced Pub. Program, 1982. - Monographs and studies in mathematics ; 14 . Includes bibliographies and index. ISBN: LCCN: 81010651 Subjects--Topical Terms: Elastic waves -- Diffraction.--Elastic waves -- Diffraction. LC Class. No.: QA935 / .A24 1982 Dewey Class. No.: 531/.3823