P5: Linee guida per la codifica e l'interscambio del testo elettronico

<rng:element name="listBibl">
<rng:ref name="att.global.attributes"/>
<rng:ref name="att.declarable.attributes"/>
<rng:ref name="att.typed.attributes"/>
<rng:group>
 <rng:zeroOrMore>
  <rng:ref name="model.headLike"/>
 </rng:zeroOrMore>
 <rng:oneOrMore>
  <rng:choice>
   <rng:ref name="model.biblLike"/>
   <rng:ref name="listBibl"/>
  </rng:choice>
 </rng:oneOrMore>
</rng:group>
</rng:element>

element listBibl
{
   att.global.attributes,
   att.declarable.attributes,
   att.typed.attributes,
   ( model.headLike*, ( model.biblLike | listBibl )+ )
}