@Article {ddps.tkde03,
    author = {E. Damiani and S. {De Capitani di Vimercati} and S.
Paraboschi and P. Samarati},
    title = {Managing and Sharing Servents' Reputations in P2P Systems},
    journal = {IEEE Transactions on Knowledge and Data Engineering (TKDE)},
    volume = {15},
    number = {4},
    pages = {840-854},
    month = {July/August},
    year = {2003}
}