ropdown-toggle" data-bs-toggle="dropdown" role="button" aria-expanded="false" aria-haspopup="true" id="dropdown-articles">Articles</a>
  <div class="dropdown-menu" aria-labelledby="dropdown-articles">
    <a class="dropdown-item" href="../articles/cla_dtree.html">cla_dtree</a>
    <a class="dropdown-item" href="../articles/cla_knn.html">cla_knn</a>
    <a class="dropdown-item" href="../articles/cla_majority.html">cla_majority</a>
    <a class="dropdown-item" href="../articles/cla_mlp.html">cla_mlp</a>
    <