Giovany M. Figueiredo Quasilinear equations with dependence on the gradient via Mountain Pass techniques in R<sup>N</sup>. 14-18 2008 203 Applied Mathematics and Computation 1 http://dx.doi.org/10.1016/j.amc.2008.04.012 db/journals/amc/amc203.html#Figueiredo08