1.
Bozhukha LN. On a Jackson-Type Inequality in the Approximation of a Function by Linear Summation Methods in the Space $L_2$. Ukr. Mat. Zhurn. [Internet]. 2003Apr.25 [cited 2024Jul.27];55(4):537-45. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3927