?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Nguyen%2C+Duc+Kien&rft.aulast=Nguyen&rft.aufirst=Duc+Kien&rft.volume=Vol+6&rft.date=2014&rft.atitle=Uplink+Channel+Allocation+Scheme+and+QoS+Management+Mechanism+for+Cognitive+Cellular-Femtocell+Networks&rft.title=International+Journal+of+Communication+Networks+and+Information+Security+(IJCNIS)&rft.genre=article