@article{CMJ_2003__53_1_a11,
     author = {Fiacca, Antonella and Matzakos, Nikolas and Papageorgiou, Nikolaos S. and Servadei, Raffaella},
     title = {Nonlinear elliptic differential equations with multivalued nonlinearities},
     journal = {Czechoslovak Mathematical Journal},
     pages = {135--159},
     publisher = {mathdoc},
     volume = {53},
     number = {1},
     year = {2003},
     mrnumber = {1962005},
     zbl = {1029.35093},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2003__53_1_a11/}
}