%0 Journal Article
%A Yu. I. Merzlyakov
%T Automorphisms of two-dimensional congruence groups
%J Algebra i logika
%D 1973
%P 468-477
%V 12
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1973_12_4_a4/
%G ru
%F AL_1973_12_4_a4