%0 Journal Article %A Yu. S. Mitrokhin %T The controllability in the small of systems of nonlinear differential equations of optimal regulation %J Differencialʹnye uravneniâ %D 1974 %P 1406-1411 %V 10 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_8_a7/ %G ru %F DE_1974_10_8_a7