T. ŁĘTOWSKI and J. SMURZYŃSKI, “Evaluation of electroacoustic devices by the equivalent scale methods”, Arch. Acoust., vol. 8, no. 2, pp. 139–154, Jun. 1983, Accessed: Mar. 04, 2026. [Online]. Available: https://acoustics.ippt.gov.pl/index.php/aa/article/view/3251