@PhdThesis{JSVThesis,
  author =       {Jaideep Vaidya},
  title =        {Privacy Preserving Data Mining over Vertically
Partitioned
Data},
  school =       {Purdue University}, 
  year =         2004,
  address =      {West Lafayette, Indiana},
  url = "http://www.cs.purdue.edu/homes/jsvaidya/thesis.pdf"
}