London ; Dordrecht ; Boston : Kluwer Academic Publishers
| Archivage | Début | Fin |
|---|---|---|
| CLOCKSS Archive | 1997 | 2024 |
| Library of Congress | 2018 | 2024 |
| LOCKSS Archive | 2012 | 2018 |
| LOCKSS Archive | 2013 | 2018 |
| National Digital Preservation Program, China | 1997 | 2023 |
| National Library of the Netherlands | 1997 | 2019 |
| Portico | 2006 | 2006 |
| Portico | 2007 | 2024 |
| Scholars Portal | 1997 | 2024 |