Calculus of variations
Fomin, S.V. Gelfand, I.M.
Calculus of variations - New Jersey Prentice Hall 1963 - vii,232p. 22cm.
515.64 / G24C
Calculus of variations - New Jersey Prentice Hall 1963 - vii,232p. 22cm.
515.64 / G24C