LAINE, I. Introduction to a quasi-linear potential theory. Annales Fennici Mathematici, [S. l.], v. 10, n. 1, p. 339–348, 1985. DOI: 10.5186/aasfm.1985.1037. Disponível em: https://afm.journal.fi/article/view/134532. Acesso em: 25 nov. 2024.