ÅSARD, Erik. The End of the American Era? Challenges to U.S. Supremacy in the 21st Century. American Studies in Scandinavia, [S. l.], v. 43, n. 2, p. 97–120, 2011. DOI: 10.22439/asca.v43i2.4379. Disponível em: https://rauli.cbs.dk/index.php/assc/article/view/4379. Acesso em: 5 dec. 2025.