FIMA, P.; VAINERMAN, L. I. A locally compact quantum group of triangular matrices. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 4, p. 564–576, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3176. Acesso em: 27 apr. 2025.