@inproceedings{DBLP:conf/wi/LukMST2013,
  title = "Query Answering in Probabilistic Datalog+⁄− Ontologies under Group Preferences",
  author = "Thomas Lukasiewicz and Maria Vanina Martinez and Gerardo I. Simari and Oana Tifrea-Marciuska",
  year = "2013",
  booktitle = "Proceedings of the 2013 IEEE/WIC/ACM International Conferences on Web Intelligence, WI 2013, Atlanta, GA, USA, November 17-20, 2013",
  editor = "Vijay Raghavan and Xiaolin Hu and Churn-Jung and Liau Jan Treur",
  pages = "171-178",
  publisher = "IEEE Computer Society",
  url = "http://dx.doi.org/10.1109/WI-IAT.2013.26",
}