SEVOST’YANOV, E. On open and discrete mappings with a modulus condition. Annales Fennici Mathematici, [S. l.], v. 41, n. 1, p. 41–50, 2016. DOI: 10.5186/aasfm.2016.4105. Disponível em: https://afm.journal.fi/article/view/135587. Acesso em: 7 apr. 2025.