    <br />
              <li>
                <i>Bubble chart - </i>by
                <a
                  href="https://bl.ocks.org/tlfrd/aa1bb8f6f3dae3148345fbb54305bdf7"
                  >Cale Tilford</a
                >
              </li>
              <br />
              <li>
                <i>About scales - </i>by
                <a href="https://d3indepth.com/scales/">d3 in depth</a>
              </li>
            </ul>
          </div>
        </div>
      </div>
    </section>

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