KLASCHE, Benjamin. The United States of America – A Declining World Hegemon?. European Scientific Journal, ESJ, [S. l.], v. 14, n. 17, p. 46, 2018. DOI: 10.19044/esj.2018.v14n17p46. Disponível em: https://test.eujournal.org/index.php/esj/article/view/10935. Acesso em: 15 apr. 2025.