Frication and aspiration noise sources: contribution of experimental data to articulatory synthesis. - Pierre Badin; Christine H. Shadle; Y. Pham Thi Ngoc; John N. Carter; W. S. C. Chiu; Celia Scully; K. Stromberg (ICSLP, 1994)

Vocal tract model and 3-dimensional effect of articulation. - Nobuhiro Miki; Pierre Badin; Y. Pham Thi Ngoc; Yoshihiko Ogawa (ICSLP, 1994)