SCHINDLER, A.; STICKELBERGER, H.; STUCKI, H. 100 Jahre Zwingliverein. Zwingliana, [S. l.], v. 24, n. , p. 9–18, 2010. Disponível em: https://zwingliana.ch/index.php/zwa/article/view/318. Acesso em: 28 oct. 2021.