%0 Journal Article
%A A. Zarelua
%A Yu. Smirnov
%T On essential and zero-dimensional mappings
%J Doklady Akademii Nauk
%D 1963
%P 1017-1019
%V 148
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_148_5_a5/
%G ru
%F DAN_1963_148_5_a5