%0 Journal Article
%A Leonid A. Cherkas
%A Joan C. Artés
%A Jaume Llibre
%T Quadratic  systems with limit cycles of normal size
%J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica
%D 2003
%P 31-46
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/BASM_2003_1_a3/
%G en
%F BASM_2003_1_a3