nal" href="doc/dscribe.html#dscribe.ext.ExtendedSystem"><code class="docutils literal notranslate"><span class="pre">ExtendedSystem</span></code></a><ul>
<li class="toctree-l4"><a class="reference internal" href="doc/dscribe.html#dscribe.ext.ExtendedSystem.atomic_numbers"><code class="docutils literal notranslate"><span class="pre">ExtendedSystem.atomic_numbers</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="doc/dscribe.html#dscribe.ext.ExtendedSystem.indices"><code class="