Chan, Dora, and Elzbieta Slawinski. “Identifying the Number of Instruments in Pairs of Simultaneously Sounding Timbre”. Canadian Acoustics 32, no. 4 (December 1, 2004): 5–13. Accessed May 15, 2026. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1700.