García-Melián, J., Rossi, J.D. i de Lis, J.C.S. 2016. A variable exponent diffusion problem of concave-convex nature. Topological Methods in Nonlinear Analysis. 47, 2 (cze. 2016), 613–639. DOI:https://doi.org/10.12775/TMNA.2016.019.