@article{TIMM_2017_23_3_a27,
     author = {R. Boukoucha},
     title = {Explicit expression for a hyperbolic limit cycles of a class of polynomial differential systems},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {300--307},
     year = {2017},
     volume = {23},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2017_23_3_a27/}
}