@article{EJDE_2005__2005__a225,
     author = {Berchio,  Elvise and Gazzola,  Filippo},
     title = {Some remarks on biharmonic elliptic problems with positive, increasing and convex nonlinearities},
     journal = {Electronic journal of differential equations},
     year = {2005},
     volume = {2005},
     zbl = {1129.35349},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a225/}
}