Salimov, R. R., and E. A. Sevost’yanov. “Analogs of the Ikoma?Schwartz Lemma and Liouville Theorem for Mappings With Unbounded Characteristic”. Ukrains’kyi Matematychnyi Zhurnal 63, no. 10 (October 25, 2011): 1368-1380. Accessed April 23, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2813.