Fabio V. Hecht, Thomas Bocek, Burkhard Stiller : B-Tracker: Improving Load Balancing and Efficiency in Distributed P2P Trackers ; in: 11th IEEE International Conference on Peer-to-Peer Computing (IEEE P2P'11), August 2011, pp 310-313. URL: http://www.csg.uzh.ch/staff/hecht/publications/btracker-cr.pdf.