KRZYWOSZYŃSKI, Przemysław. Referendum: a Contribution to the History of Disputes about the Extent of Direct Democracy. Czasopismo Prawno-Historyczne, [S. l.], v. 60, n. 1, p. 23–46, 2005. DOI: 10.14746/cph.2008.1.2. Disponível em: https://pressto.amu.edu.pl/index.php/cph/article/view/41853. Acesso em: 20 oct. 2024.