More on the concentric ordered modulus algorithm for blind equalization of QAM and QPR modulations, with results for 64 QAM, 25 QPR and 49 QPR. - Fernando López de Victoria (ICASSP, 1992)

Frequency domain interpretation of LMS convergence of a fractionally spaced equalizer. - Zvi Reznic; C. Richard Johnson Jr.; Fernando López de Victoria (IEEE Signal Process. Lett., 1996)