J. Schroeter and M. M. Sondhi, Techniques for estimating vocal-tract shapes from the speech signal, Part, pp.133-150, 1994.
DOI : 10.1109/89.260356

S. V. Dusan, Statistical Estimation of Articulatory Trajectories from the Speech Signal Using Dynamical and Phonological Constraints, 2000.

S. Maeda, Une Analyse Statistique Sur Les Positions De La Langue: Etude Preliminaire Sur Les Voyelles Francaises, pp.192-199, 1978.

S. Maeda, A digital simulation method of the vocal-tract system, Speech Communication, vol.1, issue.3-4, pp.199-229, 1982.
DOI : 10.1016/0167-6393(82)90017-6

S. Maeda, Compensatory Articulation During Speech: Evidence from the Analysis and Synthesis of Vocal-Tract Shapes Using an Articulatory Model, Speech Production and Speech Modelling, pp.131-149, 1990.
DOI : 10.1007/978-94-009-2037-8_6

M. T. Jackson and R. S. Mcgowan, Predicting midsagittal pharyngeal dimensions from measures of anterior tongue position in Swedish vowels: Statistical considerations, The Journal of the Acoustical Society of America, vol.123, issue.1, pp.336-346, 2008.
DOI : 10.1121/1.2816579

B. Lindblom, Formant frequencies of some fixed???mandible vowels and a model of speech motor programming by predictive simulation, The Journal of the Acoustical Society of America, vol.62, issue.S1, pp.15-15, 1977.
DOI : 10.1121/1.2016039

O. Engwall, A 3D Vocal Tract Model for Articulatory and Visual Speech Synthesis The Swedish Phonetics Conference, Proc. of Fonetik 98, pp.196-199, 1998.

E. Slud, Principal Components Representation of the Two-Dimensional Coronal Tongue Surface, Phonetica, vol.59, issue.2-3, pp.108-133, 2002.
DOI : 10.1159/000066066

D. A. Nix, Two cross???linguistic factors underlying tongue shapes for vowels, The Journal of the Acoustical Society of America, vol.99, issue.6, pp.3707-3717, 1996.
DOI : 10.1121/1.414968

S. Maeda, Face Models Based on A Guided PCA of Motioncapture Data: Speaker Dependent Variability in /s, ZAS Papers in Linguistics, vol.40, pp.95-108, 2005.