S. Kashyap, S. Deb, K. Naidu, R. Rastogi, and A. Srinivasan. PODS '06: Proceedings of the twenty-fifth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, page 308--317. New York, NY, USA, ACM Press, (2006)
P. Bohannon, W. Fan, M. Flaster, and R. Rastogi. SIGMOD '05: Proceedings of the 2005 ACM SIGMOD international conference on Management of data, page 143--154. New York, NY, USA, ACM, (2005)
M. Garofalakis, A. Gionis, R. Rastogi, S. Seshadri, and K. Shim. SIGMOD '00: Proceedings of the 2000 ACM SIGMOD international conference on Management of data, 29, page 165--176. New York, NY, USA, ACM Press, (June 2000)
S. Ramaswamy, R. Rastogi, and K. Shim. SIGMOD '00: Proceedings of the 2000 ACM SIGMOD international conference on Management of data, page 427--438. New York, NY, USA, ACM, (2000)