Thomas Bocek, Michael Shann, David Hausheer, Burkhard Stiller: Game Theoretical Analysis of Incentives for Large-scale, Fully Decentralized Collaboration Networks; in: 5th International Workshop on Hot Topics in Peer-to-Peer Systems, Miami, USA, April 2008, pp 14. URL: http://www.csg.uzh.ch/staff/bocek/publications/hotp2p08_incentives.pdf.