1. Bruttel, O. (2005a) Contracting-out and Governance Mechanisms in the Public Employment Services, Discussion Paper SP I 05-109, Wissenschaftszentrum Berlin für Sozialforschung (WZB), Berlin.
2. Bruttel O. (2005b) Are Employment Zones Successful? Evidence From the First Four Years. Local Economy 20(4):389-403.Wissenschaftszentrum Berlin für Sozialforschung (WZB), Berlin.
3. Bredgaard T. e Larsen F. (2008) Quasi-markets in Employment Policy: Do they deliver on promises? Social Policy and Society, 7:3, p. 341-352.
4. Bryna Sanger M. (2003) The Welfare Marketplace: Privatization and Welfare Reform, Center for Public Service, Brookings Institution Press, Washington DC.
5. Cicciomessere R. e Sorcioni M. (2009) La collaborazione tra gli operatori pubblici e privati, Italialavoro, Link: www.italialavoro.it.