ALEXANDR ORT. Jiří Hájek - odborník. Czech Journal of International Relations, Prague, Czech Republic, v. 28, n. 4, p. 5–7, 1993. DOI: 10.32422/cjir.1821. Disponível em: https://cjir.iir.cz/index.php/cjir/article/view/1821. Acesso em: 22 dec. 2024.