?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Michael&rft.aulast=Kirby&rft.au=Kirby%2C+Michael&rft.title=Weeding+and+Selecting+with+priv-21+(Data+Examples)&rft.date=29+October+2013&rft.genre=proceeding