KNIGHT, J. The sequence and stratigraphy of the eastern end of the Sabero coalfield. Trabajos de Geología, [S. l.], v. 3, n. 3, p. 139–231, 1971. DOI: 10.17811/tdg.3.1971.139-231. Disponível em: https://reunido.uniovi.es/index.php/TDG/article/view/2675. Acesso em: 2 may. 2024.