SMALLEY, Ian. Six days in July: Charles Lyell in the Eifel in 1831 (possibly looking at loess). Geologos, [S. l.], v. 23, n. 2, p. 131–136, 2017. DOI: 10.1515/logos-2017-0014. Disponível em: https://pressto.amu.edu.pl/index.php/logos/article/view/logos-2017-0014. Acesso em: 3 may. 2024.