Skorokhodov, D. S. “On the Existence of a Generalized Asymmetric (α, β)-Spline Whose Average Values Have Equal Minima at Given Points”. Ukrains’kyi Matematychnyi Zhurnal 61, no. 2 (February 25, 2009): 261-267. Accessed February 9, 2023. https://umj.imath.kiev.ua/index.php/umj/article/view/3017.