Birkhoff, George D. Nouvelles recherches sur les systèmes dynamiques. (French) Zbl 0016.23401 Mem. Pontif. Acad. Sci. Novi Lyncaei, III. Ser. 1, 85-216 (1934). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 15 Documents Keywords:Analytic mechanics, etc. PDFBibTeX XMLCite \textit{G. D. Birkhoff}, Mem. Pontif. Acad. Sci. Novi Lyncaei, III. Ser. 1, 85--216 (1934; Zbl 0016.23401)