BECKER, O. H. Helvetica im Staatsarchiv Sigmaringen. Archivnachrichten, [S. l.], n. 5, p. 7, 1992. DOI: 10.53458/an.vi5.4762. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/an/article/view/4762. Acesso em: 27 apr. 2024.