Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
63
PANGAEA - Data Publisher for Earth & Environmental Science
53
University of Calgary Journal Hosting
39
Directory of Open Access Journals: DOAJ Articles
27
University of Alaska: ScholarWorks@UA
19
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
12
MDPI Open Access Publishing
11
Naval Postgraduate School: Calhoun
11
Unknown
10
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
7
HAL Sorbonne Université
5
Université de Nantes: HAL-UNIV-NANTES
5
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Archives ouvertes de Paris-Saclay
3
Defense Technical Information Center: DTIC Technical Reports database
3
HAL de l'Institut Polytechnique de Paris
3
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
3
Muséum National d'Histoire Naturelle (MNHM): HAL
3
University of Maryland: Digital Repository (DRUM)
3
University of North Texas: UNT Digital Library
3
Université de Paris: Portail HAL
3
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
3
Xiamen University Institutional Repository
3
École Polytechnique, Université Paris-Saclay: HAL
3
Biodiversity Heritage Library (BHL)
2
Borealis
2
Institut national des sciences de l'Univers: HAL-INSU
2
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
2
Stockholm University: Publications (DiVA)
2
The Hong Kong University of Science and Technology: HKUST Institutional Repository
2
The University of Texas at Austin: Texas ScholarWorks
2
University of St Andrews: Research Portal
2
University of Tasmania: UTas ePrints
2
University of Washington, Seattle: ResearchWorks
2
Aarhus University: Research
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Digital Repository @ Iowa State University
1
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
1
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
1
Jultika - University of Oulu repository
1
Kyoto University Research Information Repository (KURENAI)
1
LIU - Linköping University: Publications (DiVA)
1
Magnolia press
1
NAOSITE: Nagasaki University Academic Output SITE
1
OpenAgrar (OA)
1
Polar Research (E-Journal)
1
University of St Andrews: Digital Research Repository
1
University of Texas at El Paso: Digital Commons@UTEP
1
University of Tromsø: Munin Open Research Archive
1