ref-model

Element Group Information

Model

label{0,1} , (citation-alternatives | element-citation | mixed-citation | nlm-citation | note)
Children: citation-alternatives, element-citation, label, mixed-citation, nlm-citation, note

Used By

Element ref

Source 

<xsd:group name="ref-model">
  <xsd:sequence>
    <xsd:element ref="label" minOccurs="0"/>
    <xsd:choice maxOccurs="unbounded">
      <xsd:group ref="citation.class"/>
      <xsd:group ref="note.class"/>
    </xsd:choice>
  </xsd:sequence>
</xsd:group>