\begin{thebibliography}{} \bibitem[\protect\citeauthoryear{Ball, Esling, and Dickson}{Ball \etal{}}{1994}]{VoQS} Ball, Martin~J., J.~Esling, and C.~Dickson. \newblock ``{VoQS: Voice Quality Symbols}''. \newblock 1994. \bibitem[\protect\citeauthoryear{Esling}{Esling}{1990}]{Esling:IPAcoding} Esling, John. \newblock ``Computer coding of the {IPA}: Supplementary Report''. \newblock {\em Journal of the International Phonetic Association} {\bf 20}(1), 22--26, 1990. \bibitem[\protect\citeauthoryear{Esling and Gaylord}{Esling and Gaylord}{1993}]{Esling:ComputerCodes} Esling, John~H. and H.~Gaylord. \newblock ``Computer Codes for Phonetic Symbols''. \newblock {\em Journal of the International Phonetic Association} {\bf 23}(2), 83--97, 1993. \bibitem[\protect\citeauthoryear{ICPLA}{ICPLA}{1994}]{extIPA} ICPLA. \newblock ``{extIPA Symbols for Disorderd Speech}''. \newblock 1994. \bibitem[\protect\citeauthoryear{IPA}{IPA}{1949}]{Principles} IPA. \newblock ``{\em The Principles of the International Phonetic Association}''. \newblock 1949. \bibitem[\protect\citeauthoryear{IPA}{IPA}{1989}]{IPA:KielConvention} IPA. \newblock ``{Report on the 1989 Kiel Convention}''. \newblock {\em Journal of the International Phonetic Association} {\bf 19}(2), 67--80, 1989. \bibitem[\protect\citeauthoryear{IPA}{IPA}{1990}]{IPA:FurtherReport} IPA. \newblock ``{Further report on the 1989 Kiel Convention}''. \newblock {\em Journal of the International Phonetic Association} {\bf 20}(2), 22--24, 1990. \bibitem[\protect\citeauthoryear{IPA}{IPA}{1993}]{IPA:CouncilActions} IPA. \newblock ``{Council actions on revisions of the IPA}''. \newblock {\em Journal of the International Phonetic Association} {\bf 23}(1), 32--34, 1993. \bibitem[\protect\citeauthoryear{Pullum and Ladusaw}{Pullum and Ladusaw}{1986}]{PSG} Pullum, Geoffrey~K. and W.~A. Ladusaw. \newblock {\em Phonetic Symbol Guide}. \newblock The University of Chicago Press, 1986. \bibitem[\protect\citeauthoryear{Wells}{Wells}{1995}]{SAMPA} Wells, John~C. \newblock ``Computer-coding the {IPA}: a proposed extension of {SAMPA}''. \newblock Revised draft 1995 04 28. \end{thebibliography}