KORTKAMP, E. 110 Jahre Posaunenchor Backnang. Backnanger Jahrbuch, [S. l.], v. 15, p. 276–277, 2007. DOI: 10.53458/bjb.v15i.9310. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9310. Acesso em: 3 juli. 2024.