Mol, Hendrik, 1919-1981
Fundamentals of phonetics II : Acoustical models generating the formants of the vowel phonemes
Mouton, 1970
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Heffner, R.M.S.
General phonetics
University of Wisconsin Press, 1960
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Laver, John
Principles of phonetics
Cambridge University Press, 1995
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Romadhani
Elements of general phonetics
Aldine, 1968
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Manual of phonetics
edited by Bertil Malmberg
North-Holland, 1968
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