text: <?xml version="1.0" encoding="ISO-8859-1" ?>
  <!-- 3.2.3 : 2.1 
      One of ref or name must be present, but not both.
  -->
  <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://foo" xmlns:foo="http://foo">
  	
    <element name="bar" type="string"/>	
  	
    <element name="foo">
    	  <complexType>
    	  	<sequence>
    	  		<element name="bar" ref="foo:bar"/>	   
    	  	</sequence>
    	  </complexType>    
    </element>  
  
  </schema>
  