World Politics at the Turn of the 19th Century: The Universal Postal Union and the Influence of the German Empire. KULT_online, [S. l.], n. 65, 2022. DOI: 10.22029/ko.2022.1294. Disponível em: https://journals.ub.uni-giessen.de/kult-online/article/view/1294. Acesso em: 20 jul. 2025.