V. A. Mozel’, “On a Banach algebra generated by the Bergman operator, constant coefficients, and finitely generated groups of shifts”, Ukr. Mat. Zhurn., vol. 69, no. 11, pp. 1515–1523, Nov. 2017, Accessed: Jan. 27, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1799