%0 Journal Article
%A A. Arkhangel'skii
%T Some types of factor mappings, and the relations between classes of topological spaces
%J Doklady Akademii Nauk
%D 1963
%P 743-746
%V 153
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_153_4_a0/
%G ru
%F DAN_1963_153_4_a0