SHERPA/RoMEO
The service SHERPA/RoMEO provides information about the copyright and open access self-archiving policies of scientific journals. They use a color-coding system to classify publishers according to their archiving policy.
| ROMEO colour | Archiving policy |
|---|---|
| green | can archive pre-print and post-print or publisher's version/PDF |
| blue | can archive post-print (ie final draft post-refereeing) or publisher's version/PDF |
| yellow | can archive pre-print (ie pre-refereeing) |
| white | archiving not formally supported |