MOLICA BISCI, G.; REPOVS, D. Multiple solutions for elliptic equations involving a general operator in divergence form. Annales Fennici Mathematici, [S. l.], v. 39, n. 1, p. 259–273, 2014. DOI: 10.5186/aasfm.2014.3909. Disponível em: https://afm.journal.fi/article/view/135486. Acesso em: 25 nov. 2024.