TREFZ, B. Backnang im Jahr 1923. Backnanger Jahrbuch, [S. l.], v. 31, p. 90–115, 2023. DOI: 10.53458/bjb.v31i.18549. Disponível em: https://journals.wlb-stuttgart.de/index.php/bjb/article/view/18549. Acesso em: 30 nov. 2025.