?url_ver=Z39.88-2004&rft_id=10.1109%2FICIAS.2012.6306204&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=C.M.&rft.au=Sarraf%2C+C.M.&rft.aulast=Sarraf&rft.isbn=9781457719677&rft.date=2012&rft.title=Quality+of+service+mapping+between+UMTS%2C+WiMAX+and+IP-based+network+in+Heterogeneous+Wireless+Networks&rft.genre=proceeding