Canadian Mathematical Congress (August 12-25:1973: Ontario). (1974). Optimal control theory and its applications: Proceedings of the fourteenth biennial seminar of the Canadian mathematical congress University of Western Ontario, August 12-25, 1973 part II. Springer - Verlag.

Canadian Mathematical Congress (August 12-25:1973: Ontario). Optimal Control Theory and Its Applications: Proceedings of the Fourteenth Biennial Seminar of the Canadian Mathematical Congress University of Western Ontario, August 12-25, 1973 Part II. Berlin: Springer - Verlag, 1974.

Canadian Mathematical Congress (August 12-25:1973: Ontario). Optimal Control Theory and Its Applications: Proceedings of the Fourteenth Biennial Seminar of the Canadian Mathematical Congress University of Western Ontario, August 12-25, 1973 Part II. Springer - Verlag, 1974.