VOLCHKOV, V. V. An Analog of the Poincaré Model for a Quaternion Hyperbolic Space. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 10, p. 1337–1342, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4353. Acesso em: 5 dec. 2025.