@article{10_4064_ap109_2_1, author = {Wenbin Liu and Jiaying Liu and Huixing Zhang and Zhigang Hu and Yanqiang Wu}, title = {Existence of periodic solutions for {Li\'enard-type} $p${-Laplacian} systems with variable coefficients}, journal = {Annales Polonici Mathematici}, pages = {109--119}, publisher = {mathdoc}, volume = {109}, number = {2}, year = {2013}, doi = {10.4064/ap109-2-1}, language = {fr}, url = {http://geodesic.mathdoc.fr/articles/10.4064/ap109-2-1/} }