@book{16531,
	author = {Seminar on Optimal Control Theory and its Applications, Canadian Mathematical Congress, Univ. of Western Ontario, August 12-25, 1973 and Kirby, Burce J.},
	title = {Optimal control theory and its applications; proceedings of the 14th biennial seminar},
	publisher = {Springer-Verlag,},
	year = {1974},
	address = {Berlin:}
}