Positive Solutions of {Delta u}+u^{(n+2)/(n-2)}=0 on Contractible Domains. Journal of Partial Differential Equations, [S. l.], v. 2, n. 4, p. 83–88, 2020. Disponível em: https://global-sci.com/index.php/jpde/article/view/3637. Acesso em: 6 dec. 2025.