?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Schwartz%2C+Ezra&rft.aufirst=Ezra&rft.aulast=Schwartz&rft.title=GUI+Talk&rft.date=June+2001&rft.genre=proceeding