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Calculus of variations / by I. M. Gelf́and and S. V. Fomin . translation from the Russian by R. A. Silverman
(Selected Russian publications in the mathematical sciences)

データ種別	図書
著者標目	Gelʹfand, Izrailʹ Moiseevich, 1913-
出版情報	Englewood Cliffs, N. J. : Prentice-Hall , c1963