A. N. Nesterenko, T. D. Tymoshkevych, and A. V. Chaikovs'kyi, “Improvement of one inequality for algebraic polynomials”, Ukr. Mat. Zhurn., vol. 61, no. 2, pp. 231–242, Feb. 2009, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3015