David Hausheer, Thomas Bocek, Cristian Morariu, Gregor Schaffrath, Burkhard Stiller (Eds.): P2P Challenge Task 2007; IFI Technical Report, No. 0, July 2007, URL: ftp://ftp.ifi.uzh.ch/pub/techreports/TR-2007/ifi-2007.10.pdf.