KÖHLER, Walther. Johannes Ficker, 12. November 1861-19. Juni 1944. Zwingliana, [S. l.], v. 8, n. 2, p. 127–128, 2010. Disponível em: https://zwingliana.ch/index.php/zwa/article/view/1383. Acesso em: 3 juli. 2024.