MOSTAFAZADEH, A. A DIFFERENTIAL INTEGRABILITY CONDITION FOR TWO-DIMENSIONAL HAMILTONIAN SYSTEMS. Acta Polytechnica, [S. l.], v. 54, n. 2, p. 139–141, 2014. DOI: 10.14311/AP.2014.54.0139. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/2095. Acesso em: 3 may. 2024.