%0 Journal Article %A B. Efimov %T On the power of Hausdorff spaces %J Doklady Akademii Nauk %D 1965 %P 967-970 %V 164 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_164_5_a2/ %G ru %F DAN_1965_164_5_a2