RomanyukV. S. (2001) “Estimates of the Kolmogorov Widths of Classes of Analytic Functions Representable by Cauchy-Type Integrals. II”, Ukrains’kyi Matematychnyi Zhurnal, 53(3), pp. 346-355. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4257 (Accessed: 6December2024).