Fedunyk-Yaremchuk, O.V., S.B. Hembars’ka, and K.V. Solich. “Approximation of Classes of Periodic Functions of Several Variables With Given Majorant of Mixed Moduli of Continuity”. Carpathian Mathematical Publications 15, no. 2 (December 5, 2023): 468–481. Accessed May 9, 2024. https://journals.pnu.edu.ua/index.php/cmp/article/view/7140.