@inproceedings{PDP-2012-KaropoulosMM,
	author        = "Georgios Karopoulos and Paolo Mori and Fabio Martinelli",
	booktitle     = "{Proceedings of the 20th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, PDP 2012, Munich, Germany, February 15-17, 2012}",
	doi           = "10.1109/PDP.2012.81",
	isbn          = "978-1-4673-0226-5",
	pages         = "283--287",
	publisher     = "{IEEE}",
	title         = "{Continuous Authorizations in SIP with Usage Control}",
	year          = 2012,
}