%0 Journal Article %A V. G. Boltyanskii %A G. Nasritdinov %T The synthesis of optimal controls in nonlinear oscillatory systems of second order %J Differencialʹnye uravneniâ %D 1967 %P 380-394 %V 3 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1967_3_3_a2/ %G ru %F DE_1967_3_3_a2