Sukhorolskyi, M. A. “Expansion of Functions in a System of Polynomials Biorthogonal on a Closed Contour With a System of Functions Regular at Infinitely Remote Point”. Ukrains’kyi Matematychnyi Zhurnal 62, no. 2 (February 25, 2010): 238–254. Accessed May 5, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2860.