Bellman, Richard Perturbation methods applied to nonlinear dynamics. (English) Zbl 0066.17701 J. Appl. Mech. 22, 500-502 (1955). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 Documents Keywords:mechanics PDFBibTeX XMLCite \textit{R. Bellman}, J. Appl. Mech. 22, 500--502 (1955; Zbl 0066.17701)