?url_ver=Z39.88-2004&rft_id=10.1109%2FISPACS.2014.7024459&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Saand%2C+A.S.&rft.aulast=Saand&rft.aufirst=A.S.&rft.title=On+efficient+relay+beamforming+for+relay+assisted+multiuser+MIMO+system&rft.date=2014&rft.isbn=9781479961207&rft.genre=proceeding