@inproceedings{ZL04c,

    author    = "Cai-Nicolas Ziegler and Georg Lausen",
    title     = "Paradigms for Decentralized Social Filtering Exploiting Trust Network Structure",
    booktitle = "Proceedings of the DOA/CoopIS/ODBASE Confederated International Conferences (2)",
    year      = "2004",
    month     = "October",
    series    = "LNCS",
    volume    = "3291",
    address   = "Larnaca, Cyprus",
    isbn      = "ISBN 3-540-23662-7",
    pages     = "840--858",
    editor    = "Robert Meersman and Zahir Tari",
    publisher = "Springer-Verlag"
}