@Article{ D'FaMiSe13, author = { D'Ambrosio, Lorenzo and Farina, Alberto and Mitidieri, Enzo and Serrin, James }, title = { Comparison principles, uniqueness and symmetry results of solutions of quasilinear elliptic equations and inequalities }, journal = { Nonlinear Analysis }, year = { 2013 }, volume = { 90 }, pages = { 135-158 }, URL = { http://cvgmt.sns.it/paper/2196/ }, note = { cvgmt preprint} }