%0 Journal Article
%A V. V. Filippov
%T On the dimension of normal spaces
%J Doklady Akademii Nauk
%D 1973
%P 805-807
%V 209
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_209_4_a13/
%G ru
%F DAN_1973_209_4_a13