Kozlov, I. S. The problem of four fixed centres and its application to the theory of celestial bodies’ motion. (Russian) Zbl 0278.70011 Astron. Zh. 51, 191-198 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 3 Documents MSC: 70F15 Celestial mechanics PDF BibTeX XML Cite \textit{I. S. Kozlov}, Astron. Zh. 51, 191--198 (1974; Zbl 0278.70011)