<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Library of Congress / National Science Foundation</hi> (2003): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">It’s About Time: Research Challenges in Digital Archiving and Long-Term Preservation</hi><ref xmlns="http://www.tei-c.org/ns/1.0" target="http://www.digitalpreservation.gov/documents/about_time2003.pdf">http://www.digitalpreservation.gov/documents/about_time2003.pdf</ref> [letzter Zugriff 25. August 2016].