LIONS, J.L. Mitter, S.K. Optimal control of systems governed by partial differential equations /[by] J.L.Lions; translated by S.K.Mitter - New York Springer-Verlag 1971 - xi, 396 p. Includes bibliography & index. ISBN: 387051155 Subjects--Topical Terms: Partial differentian eguationsDifferential calculus Dewey Class. No.: 515.353 / LIO