CHAPOVSKY, Yu. Gelfand pair associated with a hoph algebra and a coideal. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 46, n. 8, p. 1055–1066, 1994. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5658. Acesso em: 27 apr. 2025.