@misc {IOPORT.71027032,
    author       = {Mo, Ronghong and Quek, Tony Q. S. and Jr., Robert W. Heath},
    title        = {Robust beamforming and power control for two-tier femtocell networks},
    howpublished = {VTC Spring, 1-5 (2011).},
    year         = {2011},
    doi          = {10.1109/VETECS.2011.5956628},
    identifier   = {71027032},
}