SCHAHL, Adolf. Die Johanniskirche in Brackenheim. Zeitschrift des Zabergäuvereins, [S. l.], n. 1-2, p. 1–43, 1981. DOI: 10.53458/fj582198. Disponível em: https://journals.wlb-stuttgart.de/index.php/zz/article/view/19817. Acesso em: 2 apr. 2026.