Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,497
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
30
PANGAEA - Data Publisher for Earth & Environmental Science
14
Directory of Open Access Journals: DOAJ Articles
13
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
12
Copernicus Publications: E-Journals
8
Niedersächsisches Online-Archiv NOA
5
MDPI Open Access Publishing
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
Frontiers: Figshare
2
NIOZ Repository (Royal Netherlands Institute for Sea Research)
2
Unknown
2
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
Xiamen University Institutional Repository
2
Aarhus University: Research
1
Carl von Ossietzky Universität Oldenburg: /oops/ - Oldenburger Online-Publikations-Server
1
Digital.CSIC (Spanish National Research Council)
1
Frontiers (Publisher)
1
GEO-LEOe-docs (FID GEO)
1
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
1
Hereon Publications (Helmholtz-Zentrum)
1
Max Planck Society: MPG.PuRe
1
ORA - Oxford University Research Archive
1
Old Dominion University: ODU Digital Commons
1
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
1
Oxford University Press
1
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
1
RePEc (Research Papers in Economics)
1
ScholarsArchive@OSU (Oregon State University)
1
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
1
ScienceDirect (Elsevier)
1
Technical University of Denmark: DTU Orbit
1
University of Gothenburg: GUPEA (Gothenburg University Publications Electronic Archive)
1
University of Groningen research database
1
University of Rhode Island: DigitalCommons@URI
1
Vrije Universiteit Amsterdam (VU): Research Portal
1
Zenodo
1