BUHL, A. Das Rätsel des Hundsrücken in Bisingen. Zollerheimat, [S. l.], v. 9, n. 3, p. 25–28, 1940. DOI: 10.53458/zh.v9i3.12131. Disponível em: https://journals.wlb-stuttgart.de/index.php/zh/article/view/12131. Acesso em: 22 dez. 2024.