T. ZAKRZEWSKI, “Spectral analysis of vibrations in control investigations of vibroacoustic heads KGS-320”, Arch. Acoust., vol. 12, no. 2, pp. 89–111, Jul. 2015, Accessed: Apr. 29, 2025. [Online]. Available: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3084