LIP POSITIONS IN AMERICAN ENGLISH VOWELS

[1] Fant G., 1960, ACOUSTIC THEORY SPEE

[2] BILABIAL STOP AND NASAL CONSONANTS - A MOTION-PICTURE STUDY AND ITS ACOUSTICAL IMPLICATIONS [J]. JOURNAL OF SPEECH AND HEARING RESEARCH, 1961, 4 (03): : 233 - 247

[3] DEVELOPMENT OF A QUANTITATIVE DESCRIPTION OF VOWEL ARTICULATION [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1955, 27 (03) : 484 - 493

[4] WANGLER HH, 1958, ATLAS DTSCH SPRACHLA

[1] Fant G., 1960, ACOUSTIC THEORY SPEE

[2] BILABIAL STOP AND NASAL CONSONANTS - A MOTION-PICTURE STUDY AND ITS ACOUSTICAL IMPLICATIONS [J]. JOURNAL OF SPEECH AND HEARING RESEARCH, 1961, 4 (03): : 233 - 247

[3] DEVELOPMENT OF A QUANTITATIVE DESCRIPTION OF VOWEL ARTICULATION [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1955, 27 (03) : 484 - 493

[4] WANGLER HH, 1958, ATLAS DTSCH SPRACHLA