 You can view the <a href="http://www.cs.cornell.edu/Info/People/summers/Papers/structures.ps">full postscript file</a>, view an <a href="http://www.cs.dartmouth.edu/~samr/DAGS95/Papers/summers.html"> html version</a> at the <a href="http://www.cs.dartmouth.edu/~samr/DAGS95/papers.html">conference papers site</a>, or return to <a href="http://www.cs.cornell.edu/Info/People/summers/summers.html">my home page</a>. </p>
