MeremelyaI. Y., & SavchukV. V. (2015). Exact constants in inequalities for the Taylor coefficients of bounded holomorphic functions in a polydisc. Ukrains’kyi Matematychnyi Zhurnal, 67(12), 1690-1697. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/2101