MEYER VON KNONAU, Gerold. Zwingli-Kalender 1919. Zwingliana, [S. l.], v. 3, n. 14, p. 471–472, 2010. Disponível em: https://zwingliana.ch/index.php/zwa/article/view/1752. Acesso em: 22 juli. 2024.