?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Dui&rft.aufirst=D&rft.au=Dui%2C+D&rft.title=Compatibility+of+XML+language+versions&rft.tpages=15&rft.isbn=3-540-14036-0&rft.date=1+January+2003&rft.genre=bookitem