Giacomoni, J., Schindler, I. and Takáč, P. 2009. Sobolev versus Hölder local minimizers and existence of multiple solutions for a singular quasilinear equation. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE. 6, 1 (Dec. 2009), 117-158. DOI:https://doi.org/10.2422/2036-2145.2007.1.07.