WOLKENSTEIN, Fabio. Three Functions of Political Parties in Representative Democracies. Momentum Quarterly, Innsbruck, Österreich, v. 2, n. 2, p. 92–107, 2013. Disponível em: https://momentum-quarterly-journal.uibk.ac.at/momentum/article/view/1709. Acesso em: 17 feb. 2026.