%0 Journal Article %A V. I. Elkin %T Affine control systems, affine distributions and $t$-codistributions %J Differencialʹnye uravneniâ %D 1994 %P 1869-1879 %V 30 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_11_a3/ %G ru %F DE_1994_30_11_a3