1.
Chapovsky Y, Kalyuzhnyi AA. Factorization of Conditional Expectations on Kac Algebras and Quantum Double Coset Hypergroups. Ukr. Mat. Zhurn. [Internet]. 2003Dec.25 [cited 2024Nov.22];55(12):1669-77. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4029