Cartwright, M. L. Forced oscillations in nonlinear systems. (English) Zbl 0039.09901 Contrib. Theory of nonlinear Oscillations, Ann. Math. Stud. 20, 149-241 (1950). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 21 Documents Keywords:ordinary differential equations PDFBibTeX XML