MOSTAFAZADEH, Ali. 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://ojst.is.cvut.cz/ojs/index.php/ap/article/view/2095.. Acesso em: 13 may. 2025.