THOBOIS, M. 50 Jahre Annonay – Backnang: Eine ewig junge Städtepartnerschaft. Backnanger Jahrbuch, [S. l.], v. 26, p. 244–248, 2018. DOI: 10.53458/bjb.v26i.9908. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/9908. Acesso em: 23 juli. 2024.