MARTIO, O.; RICKMAN, S.; VÄISÄLÄ, J. Topological and metric properties of quasiregular mappings. Annales Fennici Mathematici, [S. l.], n. 488, 1971. DOI: 10.5186/aasfm.1971.488. Disponível em: https://afm.journal.fi/article/view/134144. Acesso em: 26 nov. 2024.