Hiroki Matsuzaki, Nobuhiro Miki, Nobuo Nagai, Tohru Hirohku, Yoshihiko Ogawa. 3d FEM analysis of vocal tract model of elliptic tube with inhomogeneous-wall impedance. In The 3rd International Conference on Spoken Language Processing, ICSLP 1994, Yokohama, Japan, September 18-22, 1994. pages 635-638, ISCA, 1994. [doi]