PAJEWSKI, W., and M. SZALEWSKI. “Methods of Measurements of the Quality Factor of Piezoelectric Resonators With High Electrical and Mechanical Losses”. Archives of Acoustics 20, no. 4 (December 31, 1995): 373–385. Accessed March 4, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/1277.