<?xml version="1.0"?>

   <schema uri="urn:x-commerceone:document:com:commerceone:XCBL35:XCBL35.sox$1.0">

      <elementtype name="CatalogReference">
         <model>
            <sequence>
               <element type="URI" name="CatalogURL"/>
               <element type="string" name="CatalogID" occurs="?"/>
               <element type="string" name="CatalogItemID" occurs="?"/>
            </sequence>
         </model>
      </elementtype>

   </schema>