"knb-lter-pal.309.1"</span><span class="op">)</span></span>
<span class="r-in"><span class="va">methodStep</span></span>
<span class="r-in"><span class="co">#&gt; {xml_document}</span></span>
<span class="r-in"><span class="co">#&gt; &lt;methodStep&gt;</span></span>
<span class="r-in"><span class="co">#&gt; [1] &lt;description&gt;\n  &lt;para&gt;This method step describes provenance-based ...</span></span>
<span class="r-in"><span class="co">#&gt; [2] &lt;dataSource&gt;\n  &lt;title&gt;Stable isotope compos