toggle" type="button" id="dropdown-articles" data-bs-toggle="dropdown" aria-expanded="false" aria-haspopup="true">Articles</button>
  <ul class="dropdown-menu" aria-labelledby="dropdown-articles"><li><a class="dropdown-item" href="../articles/vignette_A_data.html">A. Data handling</a></li>
    <li><a class="dropdown-item" href="../articles/vignette_B_basic.html">B. Basic analysis</a></li>
    <li><a class="dropdown-item" href="../articles/vignette_C_unsupervised.html">C. Unsupervised multiblock analysis</a>