ferences.html#refsCharacterSets" id="refsCharacterSets_xref1">[Character Sets]</a>
      registry.</li>
      <li>The character encoding declaration
      <a href="terminology.html#must-requirement" id="must-requirement_xref16">must</a>
      be serialized
      without the use of
      <a href="syntax.html#syntax-charref" id="syntax-charref_xref1">character references</a>
      or character escapes of any kind.</li>
      <li>The element containing the character encoding
      declaration
      <a href="te