tributed.

<p>
The Hat system as a whole was developed (mainly) at, and is copyright
&copy; The University of York, 1996-2005.

<p>
The <em>hat-trans</em> tool is partly based on the front end of the
<em><a href="http://haskell.org/nhc98">nhc98</a></em> compiler, and
those parts are copyright &copy; Niklas R&ouml;jemo, 1991-1998.
Parts are also based on earlier work on tracing transformations,
copyright &copy; Jan Sparud and Colin Runciman, 1996-1997.

<p>
<em>hat-trans</em> is
&copy; copyright to Olaf Chit