@inproceedings{ pqasaipref07, title = {Exploiting Prefereces over Information Sources to Efficiently Resolve Inconsistencies in Peer-to-peer Query Answering} } , url = {aipref07.pdf} } , booktitle = {Proceedings of the 2007 AAAI Workshop on Preference Handling for Artificial Intelligence (AIPref-2007, Vancouver, British Columbia)} } , author = {Arnold Binas and Sheila A. McIlraith} } , opttype = {Workshops} } , year = {2007} } , pages = {15-22} }