GUERRERO G., José C. IV Colloquium on Paleobotanic and palynology. Presentation. Revista Mexicana de Ciencias Geológicas, [S. l.], v. 4, n. 2, p. 93–94, 2019. Disponível em: https://www.rmcg.unam.mx/index.php/rmcg/article/view/1520. Acesso em: 3 may. 2025.