TY - BOOK AU - LaSalle,Joseph P. AU - Lefschetz,Solomon ED - International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics ED - United States Air Force Academy. ED - United States. ED - Research Institute for Advanced Study (Baltimore, Md.) TI - International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics U1 - 515.355 23 PY - 1963/// CY - New York PB - Academic Press KW - Differential equations, Nonlinear KW - Congresses KW - Nonlinear mechanics N1 - The symposium was held at the U.S. Air Force Academy, and was sponsored by the Air Force Office of Scientific Research and RIAS; Includes bibliographies and index ER -