%0 Journal Article %A Yu. F. Bereznickii %T On the theory of $p$-spaces %J Doklady Akademii Nauk %D 1973 %P 11-13 %V 213 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_213_1_a0/ %G ru %F DAN_1973_213_1_a0