?url_ver=Z39.88-2004&rft_id=10.4028%2Fwww.scientific.net%2FDDF.319-320.85&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=T.&rft.aulast=Ahmad&rft.au=Ahmad%2C+T.&rft.atitle=Development+and+characterization+of+alumina-silica+sand+nanoparticle+composites&rft.pages=85-94&rft.volume=319-32&rft.title=Defect+and+Diffusion+Forum&rft.issn=10120386&rft.date=2011&rft.genre=article