SalimovR. R., and Sevost’yanovE. A. “On the Absolute Continuity of Mappings Distorting the moduli of Cylinders”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 69, no. 6, June 2017, pp. 860-4, http://umj.imath.kiev.ua/index.php/umj/article/view/1741.