@InProceedings {abdnpppst-w3c2009,
author = {C.A. Ardagna and L. Bussard and S. {De Capitani di Vimercati} and G. Neven and E. Pedrini and S. Paraboschi and F. Preiss and P. Samarati and S. Trabelsi and M. Verdicchio},
booktitle = {Proc. of the W3C Workshop on Access Control Application Scenarios},
title = {PrimeLife Policy Language},
address = {Luxembourg},
month = {November},
day = {17-18},
year = {2009}
}