The Complete Integrability and Picard - Fuchs Equations of a Four-Dimensional Truncated Focker-Plank Hamiltonian System. I. Neliniini Kolyvannya, [S. l.], v. 4, n. 2, p. 264–271, 2001. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/170. Acesso em: 22 jan. 2026.