\begin{thebibliography}{Adv90}

\bibitem[Adv90]{AMD:ISDNsoundchip}
Advanced Micro Devices Inc., 901 Thompson Place, P.O. Box 3453, Sunnyvale,
  California 94088-3453 U.S.A.
\newblock {\em {Am79C30A/32A} Data Sheet in {\em {ISDN} Data Book}}, 1989/90.

\bibitem[Gri90]{Griffiths:ISDN90}
John~M. Griffiths, editor.
\newblock {\em {ISDN} Explained: Worldwide Network and Applications
  Technology}.
\newblock John Wiley \& Sons, Baffins Lane, Chichester, West Sussex, P019 1UD,
  U.K., 1990.

\bibitem[Par90]{st80R4}
ParcPlace Systems, 1550 Plymouth Street, Mountain View, California 94043,
  U.S.A.
\newblock {\em ObjectWorks\verb+\+Smalltalk release 4 User's Guide}, 1990.

\bibitem[Suna]{SUNOS4.1audio4}
SunOS 4.1 online reference manuals, Sun MicroSystems Inc.
\newblock {\em audio(4)}.

\bibitem[Sunb]{SUNOS4.1audioconvert3}
SunOS 4.1 online reference manuals, Sun MicroSystems Inc.
\newblock {\em audio\_convert(3)}.

\bibitem[Sunc]{SUNOS4.1audiodevice3}
SunOS 4.1 online reference manuals, Sun MicroSystems Inc.
\newblock {\em audio\_device(3)}.

\bibitem[Sund]{SUNOS4.1audiofilehdr3}
SunOS 4.1 online reference manuals, Sun MicroSystems Inc.
\newblock {\em audio\_filehdr(3)}.

\bibitem[Sune]{SUNOS4.1audiohdr3}
SunOS 4.1 online reference manuals, Sun MicroSystems Inc.
\newblock {\em audio\_hdr(3)}.

\bibitem[Sunf]{SUNOS4.1audiointro3}
SunOS 4.1 online reference manuals, Sun MicroSystems Inc.
\newblock {\em audio\_intro(3)}.

\bibitem[Sung]{SUNOS4.1audiomisc3}
SunOS 4.1 online reference manuals, Sun MicroSystems Inc.
\newblock {\em audio\_misc(3)}.

\end{thebibliography}
