HÖVELBORN, E. Zum Gedenken an Rudolf Kühn (1922 bis 2012). Backnanger Jahrbuch, [S. l.], v. 20, p. 296–297, 2012. DOI: 10.53458/bjb.v20i.9551. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9551. Acesso em: 23 juli. 2024.