?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Weiling&rft.aulast=Liu&rft.au=Liu%2C+Weiling&rft.title=The+Impact+of+WorldCat+Local+on+the+Use+of+Voyager%3A+An+Observation+via+Web+Server+Log+Analysis+&rft.date=May+2011&rft.genre=proceeding