Evolutionary spectral density models for random processes having a frequency modulated structure. - Joe K. Hammond; Y. H. Tsao; R. F. Harrison (ICASSP, 1983)

modelling and deconvolution of nonstationary acoustic signals from moving sources using a convariance equivalent formulation. - Joe K. Hammond; R. F. Harrison (ICASSP, 1984)

Wigner-Ville and evolutionary spectra for covariance equivalent nonstationary random processes. - Joe K. Hammond; R. F. Harrison (ICASSP, 1985)