@InProceedings{closeness,
   author = 	 {Ninghui Li  and Tiancheng Li and Suresh Venkatasubramanian},
   title = 	 {$t$-Closeness: Privacy Beyond $k$-Anonymity and $\ell$-Diversity},
   booktitle = 	 {IEEE International Conference on Data Engineering (this 
proceedings)},
   year =	 2007
}