A. Balcerzak, F. Rejmund, P. Gutkiewicz, B. Zienkiewicz, and G. Zhavnerko, “Ultrasonic chemical sensor with organic monomolecular layer”, Arch. Acoust., vol. 31, no. 4(S), pp. 47–52, Jan. 2014, Accessed: Jun. 21, 2025. [Online]. Available: https://acoustics.ippt.pan.pl/index.php/aa/article/view/1322