Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
214
Directory of Open Access Journals: DOAJ Articles
46
Unknown
26
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
17
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
16
PubMed Central (PMC)
16
University of Alaska: ScholarWorks@UA
15
Defense Technical Information Center: DTIC Technical Reports database
11
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
10
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
10
Wiley Online Library
10
Copernicus Publications: E-Journals
8
MDPI Open Access Publishing
8
Xiamen University Institutional Repository
8
Aarhus University: Research
7
Université de Nantes: HAL-UNIV-NANTES
7
Arctic Portal Library
6
National Institute of Polar Research Repository, Japan
6
Niedersächsisches Online-Archiv NOA
6
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
University of Calgary Journal Hosting
6
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
5
Natural Environment Research Council: NERC Open Research Archive
5
University of Maryland: Digital Repository (DRUM)
5
University of Tromsø: Munin Open Research Archive
5
University of Washington, Seattle: ResearchWorks
5
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
4
University of Southampton: e-Prints Soton
4
Cambridge University Press
3
ETH Zürich Research Collection
3
Institut national des sciences de l'Univers: HAL-INSU
3
Institute for Marine Research: Brage IMR
3
Stockholm University: Publications (DiVA)
3
Borealis
2
DSpace@MIT (Massachusetts Institute of Technology)
2
HAL Sorbonne Université
2
Hereon Publications (Helmholtz-Zentrum)
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
Polar Research (E-Journal)
2
ScholarsArchive@OSU (Oregon State University)
2
ScienceDirect (Elsevier - via Crossref)
2
University of Bergen: Bergen Open Research Archive (BORA-UiB)
2
University of Tasmania: UTas ePrints
2
Université de Bretagne Occidentale: HAL
2
ASM Journals (American Society for Microbiology)
1
Archives ouvertes de Paris-Saclay
1
BioOne Online Journals
1
Cosmos Scholars Publishing House: Journals Management System
1
DORA Eawag
1
Dipòsit Digital de la Universitat de Barcelona
1
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