MATEESCU, I., G. GACKOWSKA, G. KORONY, and C. BORA. “Monolithic Crystal Filters Using Lithium Tantalate Crystal”. Archives of Acoustics 16, no. 1 (May 1, 2014): 121–126. Accessed April 26, 2025. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1215.