%0 Journal Article
%A I. N. Ponomarenko
%T The isomorphism problem for classes of graphs
%J Doklady Akademii Nauk
%D 1989
%P 552-556
%V 304
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1989_304_3_a8/
%G ru
%F DAN_1989_304_3_a8