- 19791
- 1980 to 198122
- 1982 to 19841
- 1985 to 19861
- 1987 to 19893
- 1990 to 19914
- 1992 to 19940
- 1995 to 19963
- 1997 to 19995
- 2000 to 20013
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