Schmidt, G. 1928- Non-linear vibrations / G. Schmidt, A. Tondl. - New York : Cambridge University, 1986. - 420 p. : ill. ISBN: 052126698X Subjects--Topical Terms: Vibration.Nonlinear theories. LC Class. No.: QA935 / .S263 1986 Dewey Class. No.: 531/.32�19