@article{EJDE_2004__2004__a187,
     author = {Massa,  Eugenio},
     title = {Superlinear equations and a uniform anti-maximum principle for the {multi-Laplacian} operator},
     journal = {Electronic journal of differential equations},
     year = {2004},
     volume = {2004},
     zbl = {1109.35353},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2004__2004__a187/}
}