1. Intensity – its measurement and uses;Rasmussen;Sound Vib,1989
2. Time–frequency analysis of signals by Wigner distribution;Kawaura;Nikkei Electron,1987
3. Instantaneous intensity analysis of impulsive sound by the wavelet transform;Musha;Appl Acoust,2004
4. Harmonic wavelet analysis;Newland;Proc R Soc London, Ser A,1993
5. Sound intensity;Fahy,1989