ACKERMANN, C. An approach to studying quasiconformal mappings on generalized Grushin planes. Annales Fennici Mathematici, [S. l.], v. 40, n. 1, p. 305–320, 2015. DOI: 10.5186/aasfm.2015.4021. Disponível em: https://afm.journal.fi/article/view/135542. Acesso em: 30 oct. 2024.