<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Adobe Systems</hi> (2005): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Extensible Metadata Platform (XMP) Specification</hi>. Adobe Systems <ref xmlns="http://www.tei-c.org/ns/1.0" target="https://partners.adobe.com/public/developer/en/xmp/sdk/XMPspecification.pdf">https://partners.adobe.com/public/developer/en/xmp/sdk/XMPspecification.pdf</ref> [letzter Zugriff 25. August 2016].