LIEBENDÖRFER, E. 70-Jahr-Feier des Jahrgangs 1934/35. Backnanger Jahrbuch, [S. l.], v. 14, p. 280–281, 2006. DOI: 10.53458/bjb.v14i.9289. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9289. Acesso em: 3 juli. 2024.