variational problems Liusternik, L. A. (Lazar Aronovich) 1899- creator text enk Oxford New York Pergamon Press Distributed in the Western Hemisphere by Macmillan 1964 monographic eng

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x, 102 p. : ill. ; 23 cm. by L. A. Lyusternik ; translated and adapted from the Russian, by P. Collins and Robert B. Brown. Curves on surfaces Calculus of variations QA316 L6813 517.383 MAS ANL 821202 20140905123645.0 665366 eng