Richarz, Werner, and Steven Bilawchuk. β€œRe: Measuring Acoustic Transmission Loss Using the 3-Point Method by S. Bilawchuck, and K.R. Fyfe, Vol. 30, No 4, 2002 (multiple Letters)”. Canadian Acoustics 31, no. 2 (June 1, 2003): 40–41. Accessed November 26, 2021. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1525.