%0 Journal Article
%A Ч. Доличанин
%A V. G. Romanovsky
%A M. Stefanovich
%T Center conditions and cyclicity of certain cubic vector fields
%J Differencialʹnye uravneniâ
%D 1998
%P 1587-1595
%V 34
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1998_34_12_a0/
%G ru
%F DE_1998_34_12_a0