?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=L.+C.&rft.au=Wittmann%2C+L.+C.&rft.aulast=Wittmann&rft.date=1980&rft.degree=Doctoral&rft.title=Centralization+and+decentralization+in+higher+education+systems+-+with+special+reference+to+the+geoeducational+districts+of+policy+in+Brazil&rft.inst=Institute+of+Education%2C+University+of+London&rft.tpages=0