Phonetic Association, Cambridge University Press: 120–122, 1999, ISBN 0-521-63751-1 Padgett, Jaye; Tabain, Marija, Adaptive Dispersion Theory and Phonological
Phonetic Association, Cambridge University Press: 111–16, 1999, ISBN 0-521-63751-1 Okada, Hideo, Japanese, Journal of the International Phonetic Association
Phonetic Association, Cambridge University Press: 120–122, 1999, ISBN 0-521-63751-1 Strandskogen, Åse-Berit, Norsk fonetikk for utlendinger, Oslo: Gyldendal
Alphabet., Cambridge: Cambridge University Press: 140–142, 1999, ISBN 0-521-63751-1 Fougeron, Cecile; Smith, Caroline L, French, Journal of the International