%0 Journal Article %A S. M. Ageev %T Extensor properties of orbit spaces and the problem of the continuation of an action %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1994 %P 11-16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1994_1_a2/ %G ru %F VMUMM_1994_1_a2