Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
182
DataCite Metadata Store (German National Library of Science and Technology)
5
Directory of Open Access Journals: DOAJ Articles
4
Unknown
4
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
3
Copernicus Publications: E-Journals
2
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
1
Niedersächsisches Online-Archiv NOA
1
Université de Nantes: HAL-UNIV-NANTES
1