BULL-REICHENMILLER, M. Clara Zetkin im Hauptstaatsarchiv Stuttgart. Archivnachrichten, [S. l.], n. 17, p. 9, 1998. DOI: 10.53458/an.vi17.4100. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/an/article/view/4100. Acesso em: 2 mai. 2024.