   </a>
          </li>
        </ul>
        <br /><br />
        <p style="max-width: 700px; margin: auto">
          This example describes the relationships between all the co-authors of
          a researcher. Basically, 2 researchers are linked if they've published
          a paper together. This example works with d3.js <code>v4</code> and
          <code>v6</code>
        </p>
        <br />
        <a class="btn btn-secondary btn-md text-uppercase" href="../arc.html"
          >Arc diagram section