@article{EJDE_2014__2014__a122,
     author = {Chen,  Lizhen and Zhang,  Qinghua and Li,  Gang},
     title = {Periodic solutions for second-order differential inclusions with nonsmooth potentials under weak {AR-conditions}},
     journal = {Electronic journal of differential equations},
     year = {2014},
     volume = {2014},
     zbl = {1305.34029},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a122/}
}