@article{EJDE_2009__2009__a0,
     author = {Yu,  Yuehua and Zhao,  Changhong},
     title = {Boundedness of solutions for a {Li\'enard} equation with multiple deviating arguments},
     journal = {Electronic journal of differential equations},
     year = {2009},
     volume = {2009},
     zbl = {1171.34339},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a0/}
}