%0 Journal Article
%A E. V. Varenikova
%T Time symmetries of two dimensial nonautounomous differential systems
%J Problemy fiziki, matematiki i tehniki
%D 2010
%P 22-24
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PFMT_2010_1_a3/
%G ru
%F PFMT_2010_1_a3