M. M. Tsvil', “ Dzyadyk formula for summation of double Faber series”, Ukr. Mat. Zhurn., vol. 46, no. 9, pp. 1283–1287, Sep. 1994, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5648