BRAŃSKI, A. “Acoustic Modelling of Surface Sources. Part II. Piston Model, Asymmetrical Function of Vibration Velocity, Discretizing Error, Axisymmetrical Problem”. Archives of Acoustics 20, no. 4 (December 31, 1995): 327–345. Accessed March 4, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/1274.