Troebst, Stefan. „Richard J. Crampton, Eastern Europe in the Twentieth Century; Richard Crampton/Ben Crampton, Atlas of Eastern Europe in the Twentieth Century“. Südost-Forschungen 1, no. 1 (November 30, 2021): 497–501. Zugegriffen Juli 4, 2024. http://bsb0sit-zepweb01.bsb.lrz.de/portal/index.php/sof/article/view/7640.