DANIŠ, Miroslav. Scholarly and Educational Activities of Professor Perfecky in Slovakia. Vestnik of Saint Petersburg University. History, [S. l.], v. 67, n. 3, p. 961–982, 2022. DOI: 10.21638/spbu02.2022.317. Disponível em: https://history-journal.spbu.ru/article/view/14710. Acesso em: 20 may. 2024.