Radzievskii GV. Moduli of continuity defined by zero continuation of functions and K-functionals with restrictions. Ukr. Mat. Zhurn. [Internet]. 1996 Nov. 25 [cited 2025 Dec. 6];48(11):1537-54. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5208