?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Ana+Karina&rft.au=Morais+de+Lira%2C+Ana+Karina&rft.aulast=Morais+de+Lira&rft.degree=Doctoral&rft.tpages=387&rft.title=Separating+variables+in+the+context+of+data+handling&rft.inst=Institute+of+Education%2C+University+of+London&rft.date=2000