Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
154
Unknown
63
Directory of Open Access Journals: DOAJ Articles
56
Biodiversity Heritage Library (BHL)
49
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
22
German Aerospace Center: elib - DLR electronic library
21
Digital Repository of Scientific Institutes (RCIN)
18
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
18
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
17
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
16
Georg-August-Universität Göttingen: GOEDOC
13
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
13
Publication Server of Goethe University Frankfurt am Main
12
Hathi Trust Digital Library
9
Cologne University: KUPS
8
GEO-LEOe-docs (FID GEO)
7
Harvard University: Harvard Collections
7
University of Michigan: Digital Collections
7
Bavarian Digital Repository (BDR - Bayerische Staatsbibliothek Munich, BSB)
6
Bayreuth University: EPub Bayreuth
6
ETH Zürich Research Collection
6
Freie Universität Berlin: Refubium (FU Berlin)
5
University of Groningen research database
5
University of Potsdam: publish.UP
5
Georg-August-Universität Göttingen: eDiss
4
Hereon Publications (Helmholtz-Zentrum)
4
Max Planck Society: MPG.PuRe
4
OpenAgrar (OA)
4
Wiley Online Library
4
Wissenschaftliche Verlagsgesellschaft Stuttgart
4
ediss.sub.hamburg (Staats- und Universitätsbibliothek Hamburg, Carl von Ossietzky)
4
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
3
LaCRIS - University of Lapland Current Research System
3
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
3
Publication Server of the Justus-Liebig-University of Giessen
3
Springer Nature (via Crossref)
3
Universität Leipzig: Qucosa
3
York University Digital Library
3
ZFDM Repository (Center for Sustainable Research Data Management, Hamburg University)
3
bonndoc - The Repository of the University of Bonn
3
epub.oeaw (The digital publication portal of the Austrian Academy of Sciences)
3
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
2
BORIS (Bern Open Repository and Information System, University of Bern)
2
DataCite
2
Digital Library Thüringen
2
Dresden University of Technology: Qucosa
2
EconStor (German National Library of Economics, ZBW)
2
Henry - Hydraulic Engineering Repository
2
OPARU (OPen Access Repository of Ulm University)
2
PuSH - Publikationsserver des Helmholtz Zentrums München
2
more ...