ZEHENDER, R. Schuljahrgang 1930/31: 70-Jahr-Feier am 27. Mai 2000. Backnanger Jahrbuch, [S. l.], v. 8, p. 260–261, 2000. DOI: 10.53458/bjb.v8i.9034. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9034. Acesso em: 23 juli. 2024.