1. Baratz, M. S. & Grigsby, W.G. (1971). “Thoughts on poverty and its elimination”. Journal of Social Policy (Cambridge), 1, 2.
2. Bauer, O. (1907). Die Nationalitätenfrage und die Sozialdemokratie. Wien.
3. Bauman, Z. (2007). Liquid Times. Living in an Age of Uncertainty. Polity.
4. Crouch, C. (2004). Post Democracy. Polity.
5. Esposito, R. (2006). Communitas. Origine e destino della comunità. Torino: Einaudi.