FREITAG, P. 40 Jahre Freundschaft Backnang - Annonay. Backnanger Jahrbuch, [S. l.], v. 13, p. 236–237, 2005. DOI: 10.53458/bjb.v13i.9227. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9227. Acesso em: 3 juli. 2024.