http://www.vizrt.com/types/relation/person-lookup

An http://www.vizrt.com/types/relation/person-lookup link is contained in the Atom feed returned by an http://www.vizrt.com/types/relation/person link (see http://www.vizrt.com/types/relation/person). A link of this type references an OpenSearch document describing the format of the search requests that may be submitted to search for persons.

</feed>
...
    <link rel="http://www.vizrt.com/types/relation/person-lookup" 
          href="http://host-ip-address/webservice/open-search/person-lookup-description.xml" 
          type="application/opensearchdescription+xml"/>
...
</feed>