Š. Hošková, J. Chvalina, and P. Račková, “HYPERGROUPS OF INTEGRAL OPERATORS IN CONNECTIONS WITH TRANSFORMATION STRUCTURES”, AiMT, vol. 1, no. 2, pp. 105–117, Mar. 2022, Accessed: Nov. 22, 2024. [Online]. Available: https://aimt.cz/index.php/aimt/article/view/1711