Qualitative methods in the many body problem. Translated from the Russian by B.D. Seckler. Kachestvennye metody v probleme n tel. English Khilʹmi, G. F. (Genrikh Frant︠s︡evich) Many body problem. QB362 .K483 531.38 KHQ Translation of Kachestvennye metody v probleme n tel. Bibliography: p. 113-116. New York : Gordon and Breach, 1961. 1961. 1961 Text xi, 117 p. ; eng engrus Russian tracts on advanced mathematics and physics ; v. 3