@PhdThesis{contes05Security,
  author = 	 {Arnaud Contes},
  title = 	 {{Une Architecture de Sécurité Hiérarchique, Adaptable et Dynamique pour la Grille

}},
  school = 	 {University of Nice Sophia-Antipolis},
  year = 	 {2005},
  month = 	 Sep
}