PritulaN. N. (1997) “Lie-algebraic structure of integrable nonlinear dynamical systems on extended functional manifolds”, Ukrains’kyi Matematychnyi Zhurnal, 49(11), pp. 1512–1518. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5150 (Accessed: 24November2024).