@TechReport{Vigil_Providing_Trust_for_Enhanced_Security_in_Pervasive_Systems,
  author = "Lalana  Kagal and Filip  Perich and Anupam  Joshi and Yelena  Yesha",
  title = "{Vigil: Providing Trust for Enhanced Security in Pervasive Systems}",
  month = "August",
  year = "2002",
  institution = "University of Maryland, Baltimore County",
}