@Article{BGS:JCS06,
  author    =  	{C. Braghin and D. Gorla and V. Sassone},
  title     =  	{Role-Based Access Control for a Distributed Calculus},
  journal   =   {Journal of Computer Security},
  volume    =  	{14},
  number    =  	{2},
  pages     =  	{113--155},
  year      =  	{2006},
  publisher =   {IOS Press},
}