@article{DBLP:journals/jws/FGGL11, title = "Semantic Web Search Based on Ontological Conjunctive Queries", author = "Bettina Fazzinga and Giorgio Gianforme and Georg Gottlob and Thomas Lukasiewicz", year = "2011", journal = "Journal of Web Semantics", month = "December", pages = "453-473", url = "http://dx.doi.org/10.1016/j.websem.2011.08.003", volume = "9", }