Prykarpatsky, A.K., Samoilenko, V.G. and Taneri, U. (2003) “The Reduction Method in the Theory of Lie-Algebraically Integrable Oscillatory Hamiltonian Systems”,
Ukrains’kyi Matematychnyi Zhurnal, 55(2), pp. 232–240. Available at:
https://umj.imath.kiev.ua/index.php/umj/article/view/3901 (Accessed: 10 April 2025).