Zhu Liang Yu Wee Ser Meng Hwa Er Huawei Chen Robust Adaptive Beamformer with LMI Constraints on Magnitude Response. 815-819 2008 ICC http://dx.doi.org/10.1109/ICC.2008.160 conf/icc/2008 db/conf/icc/icc2008.html#YuSEC08