EnolskiiV. Z., and KondratevA. Yu. “Jacobi Polynomials and Lax Representation for Completely Integrable Dynamical Systems”. Ukrains’kyi Matematychnyi Zhurnal 46, no. 8 (August 25, 1994): 1088–1091. Accessed September 1, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5663.