1.
Romanyuk AS. On Kolmogorov widths of classes $B^r_{p, \theta}$ of periodic functions of many variables with low smoothness in the space $L_q$. Ukr. Mat. Zhurn. [Internet]. 1994Jul.25 [cited 2024Nov.24];46(7):915–926. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5683