BALLE, W. 75-Jahr-Feier und Diamantene Konfirmation des Jahrgangs 1933/34. Backnanger Jahrbuch, [S. l.], v. 17, p. 326–328, 2009. DOI: 10.53458/bjb.v17i.9399. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9399. Acesso em: 3 juli. 2024.