@article{KYB_2012__48_2_a0,
     author = {Damak, Hanen and Hammami, Mohamed Ali and Sun, Yeong-Jeu},
     title = {The existence of limit cycle for perturbed bilinear systems},
     journal = {Kybernetika},
     pages = {177--189},
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {2012},
     mrnumber = {2954318},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2012__48_2_a0/}
}