Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,015
Directory of Open Access Journals: DOAJ Articles
25
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
20
Arctic Data Center (via DataONE)
19
Unknown
19
PANGAEA - Data Publisher for Earth & Environmental Science
14
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
12
DataCite
11
Zenodo
11
Wiley Online Library
10
Institut national des sciences de l'Univers: HAL-INSU
9
Université de Nantes: HAL-UNIV-NANTES
9
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
9
Copernicus Publications: E-Journals
8
Defense Technical Information Center: DTIC Technical Reports database
7
HAL Sorbonne Université
7
Niedersächsisches Online-Archiv NOA
7
PubMed Central (PMC)
7
Digital.CSIC (Spanish National Research Council)
6
Frontiers: Figshare
6
MDPI Open Access Publishing
6
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
Theses Canada/Thèses Canada (Library and Archives Canada)
6
University of Tromsø: Munin Open Research Archive
6
Natural Environment Research Council: NERC Open Research Archive
5
Frontiers (Publisher)
4
Tomsk State University Research Library
4
University of California: eScholarship
4
University of Southampton: e-Prints Soton
4
AAAS Resource Center (American Association for the Advancement of Science)
3
Aarhus University: Research
3
Caltech Authors (California Institute of Technology)
3
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
Oxford University Press
3
ScienceDirect (Elsevier - via Crossref)
3
University of British Columbia: cIRcle - UBC's Information Repository
3
Université de Bretagne Occidentale: HAL
3
Université de Paris: Portail HAL
3
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
3
École Polytechnique, Université Paris-Saclay: HAL
3
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
2
Arctic Portal Library
2
Cardiff University: ORCA (Online Research @ Cardiff)
2
ENSTA Bretagne: HAL (Ecole Nationale Supérieure de Techniques Avancées Bretagne)
2
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2
Ghent University Academic Bibliography
2
HAL - Université de La Rochelle
2
HELDA – University of Helsinki Open Repository
2
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
2
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