SKRYPNIK, I. I. Removability of an Isolated Singularity of Solutions of Nonlinear Elliptic Equations with Absorption. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 57, n. 7, p. 972–988, 2005. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3656. Acesso em: 6 dec. 2025.