resolved issue with some Chinese records having doc_ref elsewhere

site/solr.php

   if (preg_match('/=D\s(([^\s]*)\s([^\s]*)\s([^\s]*))/', $input, $doc_ref)){
     $output['doc_ref'] = str_replace(' ','',$doc_ref[1]);
   }
+  elseif (preg_match('/=D&locale=en_EP\s(([^\s]*)\s([^\s]*)\s([^\s]*))/', $input, $doc_ref)){
+    $output['doc_ref'] = str_replace(' ','',$doc_ref[1]);
+  }
 
   // Search for the application ID in the content element and display it
   preg_match('/Application.*\n(.*)\n/', $input, $application_id);