ŻERA, Jan, Tomira BOEHM, and Tomasz ŁĘTOWSKI. “Application of an Automatic Audiometer in the Measurement of the Directional Characteristic of Hearing”. Archives of Acoustics 7, no. 3-4 (March 7, 2016): 197–206. Accessed April 26, 2025. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3282.