Algebraic-analytic aspects of integrability via the Liouville-Arnold theorem of Hamiltonian systems on cotangent spaces: a sympletic theory approach. Neliniini Kolyvannya, [S. l.], v. 3, n. 1, p. 103–123, 2000. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/103. Acesso em: 22 jan. 2026.