?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Phan%2C+Xuan+Hieu&rft.aulast=Phan&rft.aufirst=Xuan+Hieu&rft.date=19+September+2007&rft.title=Semantic+Analysis+of+Entity+Contexts+towards+Open+Named+Entity+Classification+on+the+Web&rft.genre=proceeding