E. A. Sevost'yanov, “Removal of singularities and analogs of the Sokhotskii–Weierstrass theorem for Q-mappings”, Ukr. Mat. Zhurn., vol. 61, no. 1, pp. 116–126, Jan. 2009, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3007