- 20019
- 2002 to 200316
- 2004 to 200516
- 2006 to 20074
- 2008 to 200913
- 2010 to 20117
- 2012 to 20138
- 2014 to 201516
- 2016 to 201711
- 20185
The preservation of the Duke University Libraries Digital Collections and the Duke Digital Repository programs are supported in part by the Lowell and Eileen Aptman Digital Preservation Fund