%0 Journal Article %A S. V. Emel'yanov %A S. K. Korovin %A I. G. Mamedov %A S. V. Nikitin %T Criteria for controllability of nonlinear systems with phase %J Doklady Akademii Nauk %D 1986 %P 18-22 %V 290 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_290_1_a2/ %G ru %F DAN_1986_290_1_a2