BOMM, H. Rudolf Freund und Willy Lehmann zum Gedächtnis. Backnanger Jahrbuch, [S. l.], v. 4, p. 223–225, 1996. DOI: 10.53458/bjb.v4i.8850. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/bjb/article/view/8850. Acesso em: 3 juli. 2024.