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  <ul>
    <li><a href="http://heptagon.gforge.inria.fr">Main page</a></li>
    <li><a href="https://gforge.inria.fr/projects/heptagon">Download</a></li>
    <li><a href="pub/heptagon-manual.pdf">Manual</a></li>
    <li><a href="bib.php">Publications</a></li>
  </ul>
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