KRZYWOSZYŃSKI , Przemysław. Some notes on the referendum in the Polish People’s Republic. Czasopismo Prawno-Historyczne, [S. l.], v. 61, n. 1, p. 173–193, 2009. DOI: 10.14746/cph.2009.1.8. Disponível em: https://pressto.amu.edu.pl/index.php/cph/article/view/40508. Acesso em: 18 may. 2024.