HolubA. P., and ChernetskaL. O. “Two-Dimensional Generalized Moment Representations and Rational Approximations of Functions of Two Variables”. Ukrains’kyi Matematychnyi Zhurnal 65, no. 8 (August 25, 2013): 1035–1058. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2489.