AUTORENLOS. Karl Widmaiers Lebenslauf. Zollerheimat, [S. l.], v. 1, n. 10, p. 58–59, 1932. DOI: 10.53458/zh.v1i10.8696. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/zh/article/view/8696. Acesso em: 3 juli. 2024.