GEBREEL ALKHAIR. On a New Conformal Euler-Lagrangian Equations on Para-Quaternionic Manifolds. Global Journal of Science Frontier Research, [S. l.], v. 20, n. F4, p. 19–32, 2020. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/2726. Acesso em: 2 may. 2024.