RomanyukA. S., SerdyukA. S. and StepanetsO. I. (1999) “International conference on the theory of approximation of functions and its applications dedicated to the memory of V. K. Dzyadyk”, Ukrains’kyi Matematychnyi Zhurnal, 51(9), pp. 1296–1297. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4727 (Accessed: 27July2024).