?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Liu&rft.aufirst=Weiling&rft.au=Liu%2C+Weiling&rft.title=Understanding+User+OPAC+Searching+Habits+Through+WebVoyage+Log+Analysis%3A+A+Comparative+Study+of+Two+Cases&rft.date=12+May+2010&rft.genre=proceeding