?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=P%C3%A9ter&rft.aulast=Hal%C3%A1csy&rft.au=+Hal%C3%A1csy+P%C3%A9ter&rft.date=2003&rft.title=Word+frequency+and+spell-checker+accuracy&rft.genre=proceeding