MARCUS, M.; VÉRON, L. Boundary trace of positive solutions of nonlinear elliptic inequalities. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 3, n. 3, p. 481-533, 2009. DOI: 10.2422/2036-2145.2004.3.02. Disponível em: http://20.103.181.36/index.php/annaliscienze/article/view/46. Acesso em: 27 may. 2025.