Sanchez-Palencia, Enrique. Non-homogeneous media and vibration theory / Enrique Sanchez-Palencia. - [S.l.] : Springer-Verlag, 1980. - 398 p. - Lecture notes in physics. . - Lecture notes in physics. . ISBN: 0387100008 9780387100005 Dewey Class. No.: 530.15