- 1980 to 19813
- 1982 to 19833
- 1984 to 19850
- 1986 to 19872
- 1988 to 19892
- 1990 to 19912
- 1992 to 19930
- 1994 to 19950
- 1996 to 19970
- 1998 to 19991
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