?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Pinto&rft.au=Pinto%2C+Joao+Fernandes+de+Abreu&rft.aufirst=Joao+Fernandes+de+Abreu&rft.date=1994&rft.title=Formulation+and+tabletting+of+controlled+release+pellets+produced+by+extrusion+%2F+spheronisation&rft.inst=UCL+(University+College+London)&rft.tpages=214&rft.degree=Doctoral