TREFZ, B. 80-Jahr-Feier und Eiserne Konfirmation des Jahrgangs 1930/31. Backnanger Jahrbuch, [S. l.], v. 19, p. 271, 2011. DOI: 10.53458/bjb.v19i.9507. Disponível em: https://journals.wlb-stuttgart.de/index.php/bjb/article/view/9507. Acesso em: 18 dez. 2024.