Chapter 5: Composition of organic matter in source rocks. Bulletin Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 158, p. 32–39, 1989. DOI: 10.34194/bullggu.v158.6704. Disponível em: https://geusjournals.org/index.php/bullggu/article/view/6704. Acesso em: 2 jan. 2026.