MILTHERS, V. Mergelen i Holstebro Egnen. Danmarks Geologiske Undersøgelse III. Række, [S. l.], v. 15, p. 1–18, 1917. DOI: 10.34194/raekke3.v15.6920. Disponível em: https://geusjournals.org/index.php/raekke3/article/view/6920. Acesso em: 3 jul. 2024.