[1]
A.-M. Acu, H. Gonska, and I. Ra¸sa, “Grüss-type and Ostrowski-type inequalities in approximation theory”, Ukr. Mat. Zhurn., vol. 63, no. 6, pp. 723–740, Jun. 2011, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2758