TUREK, Maciej. Money for Nothing? Financing the 2016 and 2020 U.S. Presidential Nomination Campaigns. Political Preferences, [S. l.], n. 27, p. 39–62, 2020. DOI: 10.31261/polpre.2020.27.39-62. Disponível em: https://trrest.vot.pl/ojsus/index.php/PP/article/view/9755. Acesso em: 6 may. 2025.