Fractionation and Characterization of Asphaltenic and Resinous Fractions of Natural Bitumen. Communication In Physical Sciences, [S. l.], v. 5, n. 2, p. 62–72, 2020. Disponível em: https://journalcps.com/index.php/volumes/article/view/323. Acesso em: 14 jun. 2026.