1. A.D. Pierce: Acoustics: An Introduction to Its Physical Principles and Applications, 2nd edn. (Acoustical Society of America, New York 1989)
2. F.J. Fahy: Sound Intensity, 2nd edn. (E & FN Spon, London 1995)
3. ISO: ISO 3745 Acoustics – Determination of sound power levels of noise sources using sound pressure – Precision methods for anechoic and hemi-anechoic rooms (ISO, Geneva 2003)
4. J.A. Mann III, J. Tichy, A.J. Romano: Instantaneous and time-averaged energy transfer in acoustic fields, J. Acoust. Soc. Am. 82, 17–30 (1987)
5. J.-C. Pascal: Mesure de lʼintensité active et réactive dans differents champs acoustiques, Proc. Rec. Devel. Acoust. Intens. (CETIM, Senlis 1981) pp. 11–19