1. ISO 354:1985, “Acoustics—measurement of sound absorption in a reverberation room.”
2. ISO 10534-2:1998, Acoustics—determination of sound absorption coefficient and impedance in impedance tubes. Part 1: method using standing wave ratio.
3. ISO 10534-2:1998, Acoustics—determination of sound absorption coefficient and impedance in impedance tubes. Part 2: transfer-function method.
4. Acoustic absorbers and diffusers: theory, design, and application;Cox,2004
5. Sound diffraction and absorption by a strip of absorbing material;Pellam;J Acoust Soc Am,1940