D. Gesbert, M. Kountouris, R.W. Heath Jr., C.-B. Chae, and T. Sälzer, Shifting the MIMO Paradigm, IEEE Signal Processing Magazine, vol. 24, no. 5, pp. 36-46, 2007.
Q. Spencer; M. Haardt & A. L. Swindlehurst (February 2004). "Zero-Forcing Methods for Downlink Spatial Multiplexing in Multi-User MIMO Channels". IEEE Trans. Signal Process. 52 (2): 461. Bibcode:2004ITSP...52..461S. doi:10.1109/TSP.2003.821107. S2CID616082.
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Q. Spencer; M. Haardt & A. L. Swindlehurst (February 2004). "Zero-Forcing Methods for Downlink Spatial Multiplexing in Multi-User MIMO Channels". IEEE Trans. Signal Process. 52 (2): 461. Bibcode:2004ITSP...52..461S. doi:10.1109/TSP.2003.821107. S2CID616082.
Q. Spencer; M. Haardt & A. L. Swindlehurst (February 2004). "Zero-Forcing Methods for Downlink Spatial Multiplexing in Multi-User MIMO Channels". IEEE Trans. Signal Process. 52 (2): 461. Bibcode:2004ITSP...52..461S. doi:10.1109/TSP.2003.821107. S2CID616082.