Leitmann, George The Calculus of variations and optimal control : An Introduction / George Leitmann - New York Plenum Pr 1981 - xvi, 311p;pbk - Mathematical concepts and methods in science and engineering . ISBN: 9780306407079 Subjects--Topical Terms: MathematicsCalculas of variationsControl theory Dewey Class. No.: 519.64 / LEI