Sachdev, P. L. Nonlinear ordinary differential equations and their applications / P.L. Sachdev. - New York : M. Dekker, c1991. - xviii, 578 p. : ill. - Monographs and textbooks in pure and applied mathematics ; 142 . ISBN: 0824783646 (acid-free paper) LCCN: 91065055 Subjects--Topical Terms: Differential equations.