Richard K. Martin C. Richard Johnson Jr. Ming Ding Brian L. Evans Exploiting symmetry in channel shortening equalizers. 97-100 2003 ICASSP (5) https://doi.org/10.1109/ICASSP.2003.1199877 conf/icassp/2003 db/conf/icassp/icassp2003.html#MartinJDE03