\begin{thebibliography}{10}

\bibitem{Shannon-48}
Claude~E. Shannon.
\newblock A mathematical theory of communication.
\newblock {\em Bell System Tech. J.}, 27:379--423, 623--656, 1948.

\bibitem{Needham-97}
Tristan Needham.
\newblock {\em Visual Complex Analysis}.
\newblock Oxford University Press, 1997.

\bibitem{Barendregt-84}
Henk~P. Barendregt.
\newblock {\em The Lambda Calculus: Its Syntax and Semantics}.
\newblock Elsevier, 1984.

\bibitem{Fraleigh-89}
John~B. Fraleigh.
\newblock {\em A First Course in Abstract Algebra}.
\newblock Addison-Wesley, fourth edition, 1989.

\bibitem{Clausius-1865}
Rudolph Clausius.
\newblock \"{U}ber verschiedene f\"{u}r die anwendung bequeme formen der
  hauptgleichungen der mechanischen w\"{a}rmetheorie.
\newblock {\em Poggendorff's Annalen}, 125:353.

\bibitem{Maxwell-1871}
James~Clerk Maxwell.
\newblock {\em Theory of heat}.
\newblock Longmans, Green, London, 1871.

\bibitem{Cercignani-98}
Carlo Cercignani.
\newblock {\em Ludwig Boltzmann: The Man Who Trusted Atoms}.
\newblock Oxford University Press, 1998.

\bibitem{Gibbs-06}
H.A. Bumstead and R.G.~Van Name, editors.
\newblock {\em The scientific papers of J.~Willard Gibbs}.
\newblock Longmans, Green, New York, 1906.

\bibitem{Boltzmann-1872}
Ludwig Boltzmann.
\newblock Weitere studien \"{u}ber das w\"{a}rmegleichgewicht unter
  gasmolek\"{u}len.
\newblock {\em Sitzungsberichte der Akademie der Wissenschaften, Wien, {II}},
  66:275--370, 1872.
\newblock English translation in S.G. Brush, \emph{Kinetic theory}, Vol. 2,
  \emph{Irreversible processes}, pp. 88--175, Pergamon Press, Oxford, 1966.

\bibitem{Toffoli-98}
Tommaso Toffoli.
\newblock Action, or the fungibility of computation.
\newblock In Anthony~J.G. Hey, editor, {\em Feynman and Computation}, pages
  348--392. Perseus, 1998.

\bibitem{Bekenstein-72}
Jacob~D. Bekenstein.
\newblock Black holes and the second law.
\newblock {\em Lett. Nuovo Cimento Soc. Ital. Fis.}, 4:737, 1972.

\bibitem{Hawking-74}
Stephen~W. Hawking.
\newblock Black hole explosions.
\newblock {\em Nature}, 248:30, 1974.

\end{thebibliography}