?url_ver=Z39.88-2004&rft_id=10.4028%2Fwww.scientific.net%2FAMR.660.230&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=May%2C+Z.&rft.aulast=May&rft.aufirst=Z.&rft.title=Advanced+Materials+Research&rft.date=2013&rft.isbn=9783037856413&rft.volume=660&rft.issn=10226680&rft.pages=230-235&rft.atitle=Development+of+a+portable+fingerprint+attendance+system+for+university+student&rft.genre=article