%0 Journal Article %A S. A. Antonyan %A Yu. M. Smirnov %T Universal objects and compact extensions for topological transformation groups %J Doklady Akademii Nauk %D 1981 %P 521-526 %V 257 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1981_257_3_a0/ %G ru %F DAN_1981_257_3_a0