Sevost'yanov, E. A. “On One Modulus Inequality for Mappings With Finite Length Distortion”.
Ukrains’kyi Matematychnyi Zhurnal
61, no. 5 (May 25, 2009): 680–688. Accessed April 11, 2025.
https://umj.imath.kiev.ua/index.php/umj/article/view/3050
.