%0 Journal Article
%A S. Yu. Pilyugin
%T Simple connectedness with preservation of the phase diagram
%J Differencialʹnye uravneniâ
%D 1979
%P 408-416
%V 15
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_3_a4/
%G ru
%F DE_1979_15_3_a4