%0 Journal Article %A A. Lelek %T An estimate of the defect of a space %J Doklady Akademii Nauk %D 1967 %P 1244-1246 %V 176 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_176_6_a8/ %G ru %F DAN_1967_176_6_a8