Chapovsky, Y. (1994) “Gelfand pair associated with a hoph algebra and a coideal”, Ukrains’kyi Matematychnyi Zhurnal, 46(8), pp. 1055–1066. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5658 (Accessed: 26 April 2025).