>
       <td>
       </td>
      </tr>
      <tr>
       <td>
        34
       </td>
       <td>
        publicationDayOfMonth
       </td>
       <td>
        <code>
         i32
        </code>
       </td>
       <td>
        This field specifies the day of the month on which the article was
published, always in the range 1-31.
       </td>
       <td>
        optional
       </td>
       <td>
       </td>
      </tr>
      <tr>
       <td>
        35
       </td>
       <td>
        publicationMonth
  