/td>
    </tr>
    <tr>
      <th>check.unescaped.percent</th>
      <td><p>If <code>TRUE</code>, the default, fields with unescaped
percent signs are an error. (Unescaped percent signs in URLs are permitted.) Set
to <code>FALSE</code> to skip this check.</p></td>
    </tr>
    <tr>
      <th>.bib_expected</th>
      <td><p>(logical, default: <code>TRUE</code>) Should <code>file.bib</code> be expected to 
have file extension <code>.bib</code>? If expectation violated, a warning is emitted.</p></td>
    </tr