@CONFERENCE\{IMM2004-03125,
    author       = "J. Seigneur and C. D. Jensen",
    title        = "Trust Enhanced Ubiquitous Payment without Too Much Privacy Loss",
    year         = "2004",
    month        = "mar",
    booktitle    = "Proceedings of the 19th Annual {ACM} Symposium on Applied Computing: Track on Ubiquitous Computing Applications",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "Nicosia, Cyprus",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3125-full.html"
}