1.
Pozharska K, Romanyuk A, Yanchenko S. Best approximations for classes of periodic functions of many variables with bounded dominating mixed derivative. Ukr. Mat. Zhurn. [Internet]. 2024Aug.4 [cited 2024Nov.24];76(7):1007 -123. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/8307