Quality Production Improvement
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138
Known Releases
| 125 | 90.58% | preserved and publicly accessible (bright) | |
| 0 | 0.0% | preserved but not publicly accessible (dark) | |
| 13 | 9.43% | no known independent preservation |
Our metadata may not be up to date, but you can verify preservation holdings in Keepers Registery (click "Archival Status").
Perpetual Access Coverage by Year
Perpetual Access Coverage by Volume
Perpetual Access Coverage by Release Type
| Release Type | Total Count | Coverage |
|---|---|---|
| article-journal | 138 |
|