MEYER VON KNONAU, G. Zwingli-Kalender 1919. Zwingliana, [S. l.], v. 3, n. 14, p. 471–472, 2010. Disponível em: https://www.zwingliana.ch/index.php/zwa/article/view/1752. Acesso em: 16 mai. 2024.