@techreport{RR-14-03,
  title = "Computing k-Rank Answers with Ontological CP-Nets",
  author = "Tommaso Di Noia and Thomas Lukasiewicz and Maria Vanina Martinez and Gerardo I. Simari and Oana Tifrea-Marciuska",
  year = "2014",
  institution = "DCS",
  number = "RR-14-03",
  pages = "12",
}