?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Margery&rft.aulast=Tibbetts&rft.au=Tibbetts%2C+Margery&rft.title=Juggling+Apples+and+Oranges%3A+How+do+you+maintain+multiple+knowledge+bases%3F&rft.date=May+2013&rft.genre=proceeding