BabenkoV. F. and UedraogoZ. B. (1999) “On exact constants in inequalities for norms of derivatives on a finite segment”, Ukrains’kyi Matematychnyi Zhurnal, 51(1), pp. 117–119. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4588 (Accessed: 24November2024).