PFLUMM, K. Karl Widmaier-Erinnerungen. Zollerheimat, [S. l.], v. 1, n. 10, p. 59–60, 1932. DOI: 10.53458/zh.v1i10.8697. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/zh/article/view/8697. Acesso em: 19 juni. 2024.