%0 Journal Article
%A N. V. Efimov
%T Differential criteria for homeomorphism of certain mappings with

%J Sbornik. Mathematics
%D 1968
%P 475-488
%V 5
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1968_5_4_a0/
%G en
%F SM_1968_5_4_a0