%0 Journal Article
%A A. V. Arkhangel'skii
%T Twin theorems estimating the cardinality of a topological space
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1986
%P 24-26
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1986_2_a4/
%G ru
%F VMUMM_1986_2_a4