%0 Journal Article
%A K. S. Sibirskii
%A A. S. Şubă
%T Coefficient conditions for a center in the sense of Dulac for a differential system with one zero characteristic root and cubic right-hand sides
%J Doklady Akademii Nauk
%D 1988
%P 799-803
%V 303
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1988_303_4_a6/
%G ru
%F DAN_1988_303_4_a6