NEGRI, Antonio; HARDT, Michael. Metropolia. Praktyka Teoretyczna, [S. l.], v. 3, p. 97–105, 2011. DOI: 10.14746/prt.2011.3.1. Disponível em: https://pressto.amu.edu.pl/index.php/prt/article/view/2696. Acesso em: 27 lis. 2024.