R. Y. Denis, S. N. Singh, and S. P. Singh, “On transformation formulae for theta hypergeometric functions”, Ukr. Mat. Zhurn., vol. 64, no. 7, pp. 994–1000, Jul. 2012, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2634