Elsgolts L. (1970). Differential equations and the calculus of variations tr from the Russian by George Yankovsky.
Chicago Edition CitationElsgolts L. Differential Equations and the Calculus of Variations Tr from the Russian by George Yankovsky. 1970.
MLA Edition CitationElsgolts L. Differential Equations and the Calculus of Variations Tr from the Russian by George Yankovsky. 1970.
Warning: These citations may not always be 100% accurate.