HAUPTMANN, F. Radenković, M.: Cerske operacije (Die Operationen am Cer-Gebirge). Südost-Forschungen, [S. l.], v. 1, n. 1, p. 446–447, 2021. Disponível em: http://bsb0sit-zepweb01.bsb.lrz.de/portal/index.php/sof/article/view/12743. Acesso em: 6 mai. 2024.