- 1980 to 19811
- 1982 to 19841
- 1985 to 19860
- 1987 to 19894
- 1990 to 19910
- 1992 to 19941
- 1995 to 199633
- 1997 to 199941
- 2000 to 20017
- 20022
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