@article{EJDE_2006__2006__a183,
     author = {Ogundare,  Babatunde S.},
     title = {Boundedness of solutions to fourth-order differential equations with oscillatory restoring and forcing terms},
     journal = {Electronic journal of differential equations},
     year = {2006},
     volume = {2006},
     zbl = {1093.34526},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a183/}
}