E. DANICKI, “Analysis of narrow-band dispersive interdigital transducers by the scattering-matrix method for periodic metal strips”, Arch. Acoust., vol. 13, no. 3-4, pp. 237–255, Dec. 1988, Accessed: Mar. 04, 2026. [Online]. Available: https://acoustics.ippt.gov.pl/index.php/aa/article/view/3072