@inproceedings{DBLP:conf/sebd/CalvaneseGLV03,
  author    = {Diego Calvanese and
               Giuseppe De Giacomo and
               Maurizio Lenzerini and
               Moshe Y. Vardi},
  title     = {Query Containment Using Views},
  booktitle = {SEBD},
  year      = {2003},
  pages     = {467-474},
  crossref  = {DBLP:conf/sebd/2003},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/sebd/2003,
  editor    = {Sergio Flesca and
               Sergio Greco and
               Domenico Sacc{\`a} and
               Ester Zumpano},
  title     = {Proceedings of the Eleventh Italian Symposium on Advanced
               Database Systems, SEBD 2003, Cetraro (CS), Italy, June 24-27,
               2003},
  booktitle = {SEBD},
  publisher = {Rubettino Editore},
  year      = {2003},
  isbn      = {88-498-0629-9},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}