@InCollection {ACDS.springer07,
    author = {{C.A.} Ardagna and M. Cremonini and S. {De Capitani di Vimercati} and P. Samarati},
    editor = {M. Gertz and S. Jajodia},
    booktitle = {The Handbook of Database Security: Applications and Trends},
    title = {Privacy-enhanced Location-based Access Control},
    publisher = {Springer-Verlag},
    pages = {531--552},
    year = {2007}
}