Kruszewski, Tomasz. “Albert Hesse – Professor of Economic Law and Statistics, on Vratislavian University (1921–1945)”. The Opole Studies in Administration and Law 15, no. 2 (June 30, 2017): 147–159. Accessed November 21, 2024. https://czasopisma.uni.opole.pl/index.php/osap/article/view/1277.