Pinto Lemos, R., Leao e Silva, H. V., Flôres, E. L., & Kunzler, J. A. (2021). Mathematical Analysis and Improvement of the Maximum Spatial Eigenfilter for Direction of Arrival Estimation. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 20(1), 76–91. https://doi.org/10.1590/2179-10742021v20i1874