Content Provider
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
4
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
4
DataCite Metadata Store (German National Library of Science and Technology)
3
Directory of Open Access Journals: DOAJ Articles
2
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
2
BORIS (Bern Open Repository and Information System, University of Bern)
1
Bayreuth University: EPub Bayreuth
1
Digital Library Thüringen
1
German Aerospace Center: elib - DLR electronic library
1
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
1
OpenAgrar (OA)
1
Unknown
1