ZIWES, F.-J. Findmittel des Staatsarchivs Sigmaringen im Internet. Archivnachrichten, [S. l.], n. 18, p. 9, 1999. DOI: 10.53458/an.vi18.4086. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/an/article/view/4086. Acesso em: 15 mai. 2024.