Arne SvenssonCarl-Erik W. SundbergTor AulinA Class of Reduced-Complexity Viterbi Detectors for Partial Response Continuous Phase Modulation.1079-1087198432IEEE Trans. Commun.10https://doi.org/10.1109/TCOM.1984.1095967db/journals/tcom/tcom32.html#SvenssonSA84