@article{EJDE_2011__2011__a2,
     author = {Qi, Jianming and Ding, Jie and Zhu, Taiying},
     title = {Entire solutions for a nonlinear differential equation},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2011},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a2/}
}