%0 Journal Article
%A V. E. Lopatkin
%T The cohomology rings of asynchronous transition systems
%J Dalʹnevostočnyj matematičeskij žurnal
%D 2011
%P 181-189
%V 11
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DVMG_2011_11_2_a4/
%G ru
%F DVMG_2011_11_2_a4