Content Provider
Directory of Open Access Journals: DOAJ Articles
118
DataCite Metadata Store (German National Library of Science and Technology)
40
Unknown
21
PANGAEA - Data Publisher for Earth & Environmental Science
18
University of Liège: ORBi (Open Repository and Bibliography)
11
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
10
University of Groningen research database
10
MDPI Open Access Publishing
8
Wageningen UR (University & Research Centre): Digital Library
8
Zenodo
8
Aarhus University: Research
7
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
7
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
6
Institut National de la Recherche Agronomique: ProdINRA
6
Digital.CSIC (Spanish National Research Council)
5
Ghent University Academic Bibliography
5
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR
5
Repositório Institucional da Universidade de Aveiro (RIA)
5
University of St Andrews: Research Portal
5
Altai State University: Scientific Journals of ASU
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
4
HighWire Press (Stanford University)
4
Irstea Publications et Bases documentaires (Irstea@doc/CemOA)
4
Journals at the University of Arizona
4
University of California: eScholarship
4
Université de Nantes: HAL-UNIV-NANTES
4
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS)
3
Açık Erişim@BUU (Bursa Uludağ Üniversitesi)
3
CyberLeninka (Scientific Electronic Library)
3
HELDA – University of Helsinki Open Repository
3
Hirsla - Landspítali University Hospital research archive
3
Open archive Norwegian University of Life Sciences: Brage NMBU
3
OpenAgrar (OA)
3
The University of Queensland: UQ eSpace
3
Universidade do Algarve: Sapienta
3
University of Saskatchewan: eCommons@USASK
3
Czech Academy of Sciences: dKNAV
2
Defense Technical Information Center: DTIC Technical Reports database
2
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
2
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
2
Hrčak - Portal of scientific journals of Croatia
2
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
2
Institut national des sciences de l'Univers: HAL-INSU
2
Jultika - University of Oulu repository
2
Kingston University London: Research Repository
2
NaRDuS (National Repository of Dissertations in Serbia)
2
National Chung Hsing University Institutional Repository - NCHUIR
2
Portail HAL-ANR (Agence Nationale de la Recherche)
2
Repositorio Institucional URP (Universidad Ricardo Palma)
2
University of Bergen: Bergen Open Research Archive (BORA-UiB)
2
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