Romanyuk VS. Estimates of the Kolmogorov Widths of Classes of Analytic Functions Representable by Cauchy-Type Integrals. II. Ukr. Mat. Zhurn. [Internet]. 2001 Mar. 25 [cited 2025 Dec. 5];53(3):346-55. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4257