E. A. Sevost'yanov, “On one modulus inequality for mappings with finite length distortion”, Ukr. Mat. Zhurn., vol. 61, no. 5, pp. 680–688, May 2009, Accessed: Feb. 16, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3050