?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Armi&rft.au=Armi%2C+N.&rft.aufirst=N.&rft.issue=4&rft.atitle=Multiuser+sensing+for+opportunistic+spectrum+access+in+cognitive+radio+networks&rft.pages=569-579&rft.volume=52&rft.title=European+Journal+of+Scientific+Research&rft.issn=1450216X&rft.date=2011&rft.genre=article