[1]
E. A. Sevost'yanov, “On branch points of three-dimensional mappings with unbounded characteristic of quasiconformality”,
Ukr. Mat. Zhurn.
, vol. 63, no. 1, pp. 69–79, Jan. 2011, Accessed: Apr. 13, 2025. [Online]. Available:
https://umj.imath.kiev.ua/index.php/umj/article/view/2699