@article{EJDE_1998__1998__a20,
     author = {Boldrini,  Jos\'e Luiz and Crema,  Janete},
     title = {On forced periodic solutions of superlinear quasi-parabolic problems},
     journal = {Electronic journal of differential equations},
     year = {1998},
     volume = {1998},
     zbl = {0899.35051},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1998__1998__a20/}
}