\begin{thebibliography}{10} \bibitem{VoQS} Martin~J. Ball, John Esling, and Craig Dickson. \newblock {VoQS: Voice Quality Symbols}. \newblock 1994, 1994. \bibitem{Esling:IPAcoding} John Esling. \newblock Computer coding of the {IPA}: Supplementary report. \newblock {\em Journal of the International Phonetic Association}, 20(1):22--26, 1990. \bibitem{Esling:ComputerCodes} John~H. Esling and Harry Gaylord. \newblock Computer codes for phonetic symbols. \newblock {\em Journal of the International Phonetic Association}, 23(2):83--97, 1993. \bibitem{extIPA} ICPLA. \newblock {extIPA Symbols for Disorderd Speech}. \newblock 1994, 1994. \bibitem{Principles} IPA. \newblock {\em The Principles of the International Phonetic Association}, 1949. \bibitem{IPA:KielConvention} IPA. \newblock {Report on the 1989 Kiel Convention}. \newblock {\em Journal of the International Phonetic Association}, 19(2):67--80, 1989. \bibitem{IPA:FurtherReport} IPA. \newblock {Further report on the 1989 Kiel Convention}. \newblock {\em Journal of the International Phonetic Association}, 20(2):22--24, 1990. \bibitem{IPA:CouncilActions} IPA. \newblock {Council actions on revisions of the IPA}. \newblock {\em Journal of the International Phonetic Association}, 23(1):32--34, 1993. \bibitem{PSG} Geoffrey~K. Pullum and William~A. Ladusaw. \newblock {\em Phonetic Symbol Guide}. \newblock The University of Chicago Press, 1986. \bibitem{SAMPA} John~C. Wells. \newblock Computer-coding the {IPA}: a proposed extension of {SAMPA}. \newblock Revised draft 1995 04 28, 1995. \end{thebibliography}