GIACOMONI, J.; SCHINDLER, I.; TAKÁČ, P. Sobolev versus Hölder local minimizers and existence of multiple solutions for a singular quasilinear equation. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 6, n. 1, p. 117-158, 2009. DOI: 10.2422/2036-2145.2007.1.07. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/119. Acesso em: 20 feb. 2026.