1.
Vakarchuk SB. On exact order estimates of N-widths of classes of functions analytic in a simply connected domain. Ukr. Mat. Zhurn. [Internet]. 1996 Apr. 25 [cited 2025 Apr. 9];48(4):543-7. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5318