Content Provider
Biodiversity Heritage Library (BHL)
108
DataCite Metadata Store (German National Library of Science and Technology)
76
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
54
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
53
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
23
Directory of Open Access Journals: DOAJ Articles
19
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
17
Unknown
14
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
10
BORIS (Bern Open Repository and Information System, University of Bern)
8
Bavarian Digital Repository (BDR - Bayerische Staatsbibliothek Munich, BSB)
7
Dresden University of Technology: Qucosa
7
ETH Zürich Research Collection
7
Eberhard Karls University Tübingen: Publication System
7
German Aerospace Center: elib - DLR electronic library
7
Norsk Polarinstitutt: Brage NP
7
Norwegian Polar Institute: Brage NP
7
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
6
Cologne University: KUPS
5
GEO-LEOe-docs (FID GEO)
5
OPUS - Publication Server of the University of Stuttgart
5
Publication Server of Goethe University Frankfurt am Main
4
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
3
Georg-August-Universität Göttingen: GOEDOC
3
University of Freiburg: FreiDok
3
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
2
Digital Repository of Scientific Institutes (RCIN)
2
Hathi Trust Digital Library
2
Informa (via Crossref)
2
MACAU: Open Access Repository of Kiel University
2
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
2
Project Gutenberg (PG)
2
Sapienza Università di Roma: CINECA IRIS
2
The Portal to Texas History (University of North Texas)
2
ediss.sub.hamburg (Staats- und Universitätsbibliothek Hamburg, Carl von Ossietzky)
2
Aalborg University's Research Portal
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
BOKU:ePUB (Publikationsserver der Universitätsbibliothek Bodenkultur Wien)
1
Bach-Jahrbuch (E-Journal)
1
DORA Eawag
1
Forum: Qualitative Social Research
1
Frankfurt/Main University Library: Digitale Sammlungen
1
Freie Universität Berlin: Refubium (FU Berlin)
1
Georg-August-Universität Göttingen: GoeScholar
1
Harvard University: Harvard Collections
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
KITopen (Karlsruhe Institute of Technologie)
1
MOnAMi - Publication Server of the University of Applied Sciences Mittweida
1
Organic Eprints (Danish Research Centre for Organic Farming, DARCOF)
1
PuSH - Publikationsserver des Helmholtz Zentrums München
1
more ...