Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
104
PANGAEA - Data Publisher for Earth & Environmental Science
66
Directory of Open Access Journals: DOAJ Articles
47
University of Tromsø: Munin Open Research Archive
31
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
18
Unknown
14
Wiley Online Library
13
Defense Technical Information Center: DTIC Technical Reports database
12
HAL Sorbonne Université
12
Institut national des sciences de l'Univers: HAL-INSU
12
PubMed Central (PMC)
12
Institute for Marine Research: Brage IMR
11
Université de Nantes: HAL-UNIV-NANTES
11
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
10
Copernicus Publications: E-Journals
9
HighWire Press (Stanford University)
9
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
8
University of the Highlands and Islands: Research Database of UHI
8
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
7
Digital.CSIC (Spanish National Research Council)
6
Niedersächsisches Online-Archiv NOA
6
Oxford University Press
6
Université de Bretagne Occidentale: HAL
6
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
6
MDPI Open Access Publishing
5
Muséum National d'Histoire Naturelle (MNHM): HAL
5
ScienceDirect (Elsevier - via Crossref)
5
ScienceDirect (Elsevier)
5
Springer Nature (via Crossref)
5
University of Strathclyde Glasgow: Strathprints
5
Aix-Marseille Université: HAL
4
National Institute of Polar Research Repository, Japan
4
Natural Environment Research Council: NERC Open Research Archive
4
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
4
University of Southampton: e-Prints Soton
4
Université de Toulon: HAL
4
Aarhus University: Research
3
Archives ouvertes de Paris-Saclay
3
Canadian Science Publishing (via Crossref)
3
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
3
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
3
NTNU Open Archive (Norwegian University of Science and Technology)
3
SINTEF Open (Brage)
3
Technical University of Denmark: DTU Orbit
3
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
3
University of Calgary Journal Hosting
3
University of St Andrews: Digital Research Repository
3
Université de Paris: Portail HAL
3
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
3
Université des Antilles (UAG): HAL
3
more ...