[1]
K. A. Kopotun and V. V. Listopad, “On monotone and convex approximation by algebraic polynomials”, Ukr. Mat. Zhurn., vol. 46, no. 9, pp. 1266–1270, Sep. 1994, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5644