%0 Journal Article
%A Peng,  Linping
%A Feng,  Zhaoshen
%T Bifurcation of limit cycles from quartic isochronous systems
%J Electronic journal of differential equations
%D 2014
%V 2014
%U http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a95/
%G en
%F EJDE_2014__2014__a95