@inbook{18132,
  author = {Tran Dang and Nguyen Son},
  title = {Providing Query Assurance for Outsourced Tree-Indexed Data},
  year = {2008},
  journal = {Modeling, Simulation and Optimization of Complex Processes},
  publisher = {Springer},
  address = {Berlin, Heidelberg},
  language = {eng},
}