[1]
A. A. Dovgoshei, “Chebyshev polynomial approximation on a closed subset with unique limit point and analytic extension of functions”,
Ukr. Mat. Zhurn., vol. 48, no. 7, pp. 891–900, Jul. 1996, Accessed: Apr. 13, 2025. [Online]. Available:
https://umj.imath.kiev.ua/index.php/umj/article/view/5261