%0 Journal Article %A S. A. Gomonov %T Cluster sets of multivalued mappings of topological spaces %J Doklady Akademii Nauk %D 1989 %P 20-24 %V 306 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_306_1_a2/ %G ru %F DAN_1989_306_1_a2