%0 Journal Article %A S. V. Medvedev %T Condensations of $k$-Borel sets into complete metric spaces %J Doklady Akademii Nauk %D 1985 %P 785-789 %V 281 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_281_4_a2/ %G ru %F DAN_1985_281_4_a2