%0 Journal Article
%A R. V. Plykin
%T Sources and sinks of $A$-diffeomorphisms of surfaces
%J Sbornik. Mathematics
%D 1974
%P 233-253
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1974_23_2_a4/
%G en
%F SM_1974_23_2_a4