<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">ISO</hi> (2011): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">ISO 19005-1:2005 - Document Management -- Electronic Document File Format for Long-Term Preservation -- Part 1: Use of PDF 1.4 (PDF/A-1)</hi><ref xmlns="http://www.tei-c.org/ns/1.0" target="http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=38920">http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=38920</ref> [letzter Zugriff 25. August 2016].