%0 Journal Article %A R. Boukoucha %T Explicit expression for a hyperbolic limit cycles of a class of polynomial differential systems %J Trudy Instituta matematiki i mehaniki %D 2017 %P 300-307 %V 23 %N 3 %U http://geodesic.mathdoc.fr/item/TIMM_2017_23_3_a27/ %G en %F TIMM_2017_23_3_a27