@inproceedings{DBLP:conf/pods/ArenasP11,
  author    = {Marcelo Arenas and
               Jorge P{\'e}rez},
  title     = {Querying semantic web data with SPARQL},
  booktitle = {PODS},
  year      = {2011},
  pages     = {305-316},
  ee        = {http://doi.acm.org/10.1145/1989284.1989312},
  crossref  = {DBLP:conf/pods/2011},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/pods/2011,
  editor    = {Maurizio Lenzerini and
               Thomas Schwentick},
  title     = {Proceedings of the 30th ACM SIGMOD-SIGACT-SIGART Symposium
               on Principles of Database Systems, PODS 2011, June 12-16,
               2011, Athens, Greece},
  booktitle = {PODS},
  publisher = {ACM},
  year      = {2011},
  isbn      = {978-1-4503-0660-7},
  ee        = {http://dl.acm.org/citation.cfm?id=1989284},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}