HolubA. P. (1994) “Some properties of biorthogonal polynomials and their application to Padé approximations”, Ukrains’kyi Matematychnyi Zhurnal, 46(8), pp. 977–984. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5650 (Accessed: 27July2024).