@article{10_4064_ap79_2_2,
     author = {Bing Liu},
     title = {Periodic solutions of dissipative dynamical systems
with singular potential and $p${-Laplacian}},
     journal = {Annales Polonici Mathematici},
     pages = {109--120},
     publisher = {mathdoc},
     volume = {79},
     number = {2},
     year = {2002},
     doi = {10.4064/ap79-2-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap79-2-2/}
}