@book{16401,
	author = {Boltyanskii, V. G. and Tarnove, Ivin},
	title = {Mathematical methods of optimal control},
	publisher = {Rinehart and Winston,},
	year = {1971},
	series = {Balakrishnan-Neustadt series},
	address = {New York:},
	note = {"Translated by K. N. Trirogoff".}
}