MARKINA, Irina. Singularities of quasiregular mappings on Carnot groups. Scientia Series A: Mathematical Sciences, [S. l.], v. 11, p. 69–81, 2005. DOI: 10.71712/. Disponível em: https://revistas.usm.cl/scientia/article/view/74.. Acesso em: 7 jun. 2025.