STRELETS, A. V. On identities in the algebra generated by three partial reflections sum of which is zero. Methods of Functional Analysis and Topology, [S. l.], v. 10, n. 2, p. 86–90, 2004. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/244. Acesso em: 17 dec. 2025.