LI, G. Some properties of weak solutions of nonlinear scalar field equations. Annales Fennici Mathematici, [S. l.], v. 15, n. 1, p. 27–36, 1990. DOI: 10.5186/aasfm.1990.1521. Disponível em: https://afm.journal.fi/article/view/134675. Acesso em: 25 nov. 2024.