http://www.vizrt.com/types/relation/publication

This link relation identifies a link to the publication to which a content item belongs. Links of this type occur in entry resources representing content items.

The following example shows a link of this type:

<entry>
  ...
    <link rel="http://www.vizrt.com/type/relation/publication" 
          href="http://host-ip-address/webservice/escenic/publication/demo" 
          title="demo" 
          type="application/atom+xml; type=entry"/>
  ...
</entry>