1.
Kofanov V. Bojanov–Naidenov problem for differentiable functions and the Erdös problem for polynomials and splines. Ukr. Mat. Zhurn. [Internet]. 2023Mar.2 [cited 2024Mar.28];75(2):182 -197. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/7259