%0 Journal Article
%A Llibre, Jaume
%A Schlomiuk, Dana
%T The Geometry of Quadratic Differential Systems with a Weak Focus of Third Order
%J Canadian journal of mathematics
%D 2004
%P 310-343
%V 56
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2004-015-2/
%R 10.4153/CJM-2004-015-2
%F 10_4153_CJM_2004_015_2