MELLIT, A. S. The Case Where the Sum of Three Partial Reflections is Equal to Zero. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 9, p. 1277–1283, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4001. Acesso em: 11 apr. 2025.