@InProceedings{	  hilty.ea:monitors:2007,
  abstract	= {Distributed usage control is concerned with controlling
		  how data may or may not be used after it has been given
		  away. One strategy for enforcing usage control requirements
		  is based on monitoring data usage and reacting to policy
		  violations by imposing penalties. We show how to implement
		  monitors for usage control requirements using runtime
		  verification technology.},
  author	= {Manuel Hilty and Alexander Pretschner and David Basin and
		  Christian Schaefer and Thomas Walter},
  booktitle	= {Joint iTrust and PST Conferences on Privacy, Trust
		  Management and Security},
  language	= {USenglish},
  publisher	= {Springer-Verlag},
  series	= {IFIP International Federation for Information Processing},
  title		= {Monitors for Usage Control },
  volume	= 238,
  year		= 2007,
  user		= {hiltym}
}