J. SZCZEPAŃSKA-ANTOSIK, “Roughness of two simultaneous harmonic complex tones in various pitch registers”, Arch. Acoust., vol. 33, no. 1, pp. 73–78, Mar. 2014, Accessed: Apr. 29, 2025. [Online]. Available: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/632