%0 Journal Article
%A N. S. Berezkina
%T Classes of third-order systems with no moving critical points, and evolution equations
%J Differencialʹnye uravneniâ
%D 1987
%P 885-886
%V 23
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_5_a20/
%G ru
%F DE_1987_23_5_a20