@Article {ddps.cn00,
    author = {E. Damiani and S. De Capitani di Vimercati and S. Paraboschi and P. Samarati},
    title = {Design and Implementation of an Access Control Processor for {XML} Documents},
    journal = {Computer Networks},
    number = {1-6},
    month = {June},
    year = {2000},
    note = {and in Proc. of the 9th International World Wide Web Conference, Amsterdam, May 15-19, 2000}
}