LÜLL, M. Wieder Rekordjahr in der Benutzung. WLBforum, Stuttgart, v. 8, n. 2/3, p. 46–47, 2006. DOI: 10.53458/wlbf.v8i2/3.434. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/wlbf/article/view/434. Acesso em: 16 apr. 2024.