Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
118
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
48
German Aerospace Center: elib - DLR electronic library
34
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
18
Unknown
17
Directory of Open Access Journals: DOAJ Articles
16
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
16
Georg-August-Universität Göttingen: GOEDOC
9
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
8
Dresden University of Technology: Qucosa
7
Springer Nature (via Crossref)
6
University of Freiburg: FreiDok
6
Max Planck Society: MPG.PuRe
4
BORIS (Bern Open Repository and Information System, University of Bern)
3
Biodiversity Heritage Library (BHL)
3
Biologie in unserer Zeit (BiuZ - E-Journal)
3
DBGPrints-Archive (German Soil Science Society)
3
Georg-August-Universität Göttingen: eDiss
3
MACAU: Open Access Repository of Kiel University
3
OpenAgrar (OA)
3
Publication Server of Goethe University Frankfurt am Main
3
University of Michigan: Digital Collections
3
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
3
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
2
Digital Library Thüringen
2
Freie Universität Berlin: Refubium (FU Berlin)
2
GEO-LEOe-docs (FID GEO)
2
PuSH - Publikationsserver des Helmholtz Zentrums München
2
University of Music and Performing Arts Graz (kunst uni Graz, KUG): Archive
2
Bayreuth University: EPub Bayreuth
1
Bergische Universität Wuppertal: Electronic Publications
1
Cologne University: KUPS
1
Contributions to Entomology = Beiträge zur Entomologie (E-Journal)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Digital Repository of Scientific Institutes (RCIN)
1
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
1
Gutenberg Open Science (Open-Science-Repository of the Johannes Gutenberg-University Mainz)
1
Harvard University: Harvard Collections
1
Heinrich Heine University Düsseldorf (HHU) : Document- and Publishingservice
1
Informa (via Crossref)
1
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
1
KITopen (Karlsruhe Institute of Technologie)
1
Munich University of Technology (TUM): mediaTUM
1
OPUS - Publication Server of the University of Stuttgart
1
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
1
PUB - Publications at Bielefeld University
1
Publication Server of Tier University (OPUS)
1
Publikationsdatenbank der Fraunhofer-Gesellschaft
1
REPOSIT HAW Hamburg
1
RWTH Aachen University: RWTH Publications
1
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