%0 Journal Article %A A. Arkhangel'skii %T A criterion for the existence of a bicompact element in a continuous decomposition. A theorem on the invariance of weight under open-closed finite-to-one mappings %J Doklady Akademii Nauk %D 1966 %P 1263-1266 %V 166 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_166_6_a0/ %G ru %F DAN_1966_166_6_a0