OKURKA, T. Wireless Telegraphy at the German Universal Exhibition in Ústí nad Labem in 1903 [1]. Acta Polytechnica, [S. l.], v. 48, n. 3, 2008. DOI: 10.14311/1005. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/1005.. Acesso em: 12 may. 2025.