P5: Guidelines for Electronic Text Encoding and Interchange

<rng:element name="fileDesc">
 <rng:ref name="att.global.attributes"/>
 <rng:group>
  <rng:group>
   <rng:ref name="titleStmt"/>
   <rng:optional>
    <rng:ref name="editionStmt"/>
   </rng:optional>
   <rng:optional>
    <rng:ref name="extent"/>
   </rng:optional>
   <rng:ref name="publicationStmt"/>
   <rng:optional>
    <rng:ref name="seriesStmt"/>
   </rng:optional>
   <rng:optional>
    <rng:ref name="notesStmt"/>
   </rng:optional>
  </rng:group>
  <rng:oneOrMore>
   <rng:ref name="sourceDesc"/>
  </rng:oneOrMore>
 </rng:group>
</rng:element>

element fileDesc
{
   att.global.attributes,
   (
      (
         titleStmt,
         editionStmt?,
         extent?,
         publicationStmt,
         seriesStmt?,
         notesStmt?
      ),
      sourceDesc+
   )
}