Differential equations and dynamical systems : proceedings / Edited by Jack K. Hale and Joseph P. LaSalle. International Symposium on Differential Equations and Dynamical Systems (1965 : University of Puerto Rico) Hale, Jack K., ed. LaSalle, Joseph P., ed. United States. Air Force. Office of Scientific Research. Differential equations. Dynamics. QA372 .I65 1965 517.38 HAD "Sponsored by the United States Air Force Office of Scientific Research, and the University of Puerto Rico, and Brown University." Includes bibliographical references and index.. New York : Academic Press, 1967. 1967. 1967 Text xvii, 544 p. : eng