N. I. Nagnibida, “On the equivalence of the Euler-Pommier operators in spaces of analytic functions”, Ukr. Mat. Zhurn., vol. 48, no. 7, pp. 958–971, Jul. 1996, Accessed: Feb. 17, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5269