EPR, UV and IR Spectroscopic Methods for the Study of Crude. International Journal of Petroleum Technology, [S. l.], v. 13, n. 1, p. 1–16, 2026. DOI: 10.15377/2409-787X.2026.13.1. Disponível em: https://avanti-journals.com/index.php/ijpt/article/view/1791. Acesso em: 8 apr. 2026.