Content Provider
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
53
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
50
DataCite Metadata Store (German National Library of Science and Technology)
46
LeibnizOpen (The Leibniz Association)
20
Directory of Open Access Journals: DOAJ Articles
15
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
13
Unknown
13
German Aerospace Center: elib - DLR electronic library
11
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
11
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
10
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
9
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
8
Max Planck Society: MPG.PuRe
6
Publication Server of Goethe University Frankfurt am Main
6
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
5
WikiBooks - Open-content textbooks
5
Cologne University: KUPS
4
Graz University (UGR): Unipub
4
Hereon Publications (Helmholtz-Zentrum)
4
BORIS (Bern Open Repository and Information System, University of Bern)
3
GEO-LEOe-docs (FID GEO)
3
Georg-August-Universität Göttingen: GOEDOC
3
MACAU: Open Access Repository of Kiel University
3
ediss.sub.hamburg (Staats- und Universitätsbibliothek Hamburg, Carl von Ossietzky)
3
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
2
OpenAgrar (OA)
2
University of Michigan: Digital Collections
2
ZFDM Repository (Center for Sustainable Research Data Management, Hamburg University)
2
AMAD - "Archivum Medii Aevi Digitale - Specialized open access repository for research in the middle ages"
1
Bergische Universität Wuppertal: Electronic Publications
1
Brandenburg University of Technology (BTU): Digital Repository
1
Digital Repository of Scientific Institutes (RCIN)
1
Directory of Open Access Books (DOAB)
1
Duncker & Humblot eLibrary
1
Eberhard Karls University Tübingen: Publication System
1
EconStor (German National Library of Economics, ZBW)
1
FWF-E-Book-Library (Austrian Science Fund) / Fonds zur Förderung der wissenschaftlichen Forschung
1
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
1
Georg-August-Universität Göttingen: GoeScholar
1
Georg-August-Universität Göttingen: eDiss
1
Hathi Trust Digital Library
1
Heidelberg University Publishing (heiUP) (E-Journal)
1
Informa (via Crossref)
1
Institutional Repository of Leibniz Universität Hannover
1
Open Research Library
1
PuSH - Publikationsserver des Helmholtz Zentrums München
1
Publication Server of the Justus-Liebig-University of Giessen
1
The Portal to Texas History (University of North Texas)
1
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
1
University of Potsdam: publish.UP
1
more ...