Wojan, Z., W. Lis, and K. Wojan. “Confronting Representative Spectral Structures of Vocal Tract Pulse Responses”. Archives of Acoustics 31, no. 4(S) (January 31, 2006): 211–217. Accessed March 4, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/1345.