<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">International Organization for Standardization</hi> (o. J.): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Date and time format – ISO 8601</hi>. <ref xmlns="http://www.tei-c.org/ns/1.0" target="http://www.iso.org/iso/iso8601">http://www.iso.org/iso/iso8601</ref> [letzter Zugriff 15. Oktober 2015].