A comparison of average-likelihood and maximum-likelihood ratio tests for detecting radar targets of unknown Doppler frequency. - Lawrence E. Brennan; Irving S. Reed; William Sollfrey (IEEE Trans. Inf. Theory, 1968)

Hard limiting of three and four sinusoidal signals. - William Sollfrey (IEEE Trans. Inf. Theory, 1969)

A comparison of SSB-SC and conventional AM under a peak power limitation. - Edward Bedrosian; William Sollfrey (IEEE Trans. Commun., 1989)