Sоlоmkа О.P. (1971) “A theorem on boundary properties of one class of functions analytical in the plain with a cut ”, Ukrains’kyi Matematychnyi Zhurnal, 23(6), pp. 818–823. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/8634 (Accessed: 7 April 2025).