KOVTONYUK, D. A.; SALIMOV, R. R. Asymptotic behavior of generalized quasiisometries at a point. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 4, p. 481–488, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2734. Acesso em: 5 dec. 2025.