General Method for Calculating the Spectrum of a Zero Substitution Coded Signal. - Walter Debus (IEEE Trans. Commun., 1979)

Spectral shaping and digital synthesis of an M-ary time series. - Curtis A. Siller Jr.; Walter Debus; Thomas L. Osborne (IEEE Commun. Mag., 1989)

Decision-directed fractionally spaced equalizer control using time-domain interpolation. - Curtis A. Siller Jr.; Walter Debus (IEEE Trans. Commun., 1991)