Gelfand, I.M.
Calculus of variations / by I.M. Gelfand and S.V. Fomin - 1st ed. - New York: Dover Publications, Inc., 2000. - vii, 232p.
9780486322582
B22 / P0
Calculus of variations / by I.M. Gelfand and S.V. Fomin - 1st ed. - New York: Dover Publications, Inc., 2000. - vii, 232p.
9780486322582
B22 / P0