如何在我的<xs:documentation>中引用<xs:element>？

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="myElement" type="xs:string"/>
  
  <xs:element name="myRootElement">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="myElement"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  
  <xs:element name="myOtherElement" type="xs:string"/>
  
  <xs:element name="myOtherRootElement">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="myOtherElement"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  
  <xs:element name="mySchema">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="myRootElement"/>
        <xs:element ref="myOtherRootElement"/>
      </xs:sequence>
    </xs:complexType>
    <xs:annotation>
      <xs:documentation>
        This schema defines a structure with two root elements: 
        <code>myRootElement</code> and <code>myOtherRootElement</code>.
        Each root element references a specific element: 
        <code>myElement</code> and <code>myOtherElement</code> respectively.
      </xs:documentation>
    </xs:annotation>
  </xs:element>
</xs:schema>