Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
41
DataCite Metadata Store (German National Library of Science and Technology)
30
Natural Environment Research Council: NERC Open Research Archive
23
Directory of Open Access Journals: DOAJ Articles
18
Unknown
12
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
11
Cambridge University Press
7
Copernicus Publications: E-Journals
5
Digital.CSIC (Spanish National Research Council)
5
HighWire Press (Stanford University)
5
PubMed Central (PMC)
5
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Niedersächsisches Online-Archiv NOA
4
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
3
ScienceDirect (Elsevier - via Crossref)
3
University of East Anglia: UEA Digital Repository
3
University of Southampton: e-Prints Soton
3
University of Tromsø: Munin Open Research Archive
3
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
3
Université de Nantes: HAL-UNIV-NANTES
3
Wiley Online Library
3
Zenodo
3
BIROn - Birkbeck Institutional Research Online (Birkbeck University of London)
2
Defense Technical Information Center: DTIC Technical Reports database
2
Institut national des sciences de l'Univers: HAL-INSU
2
Institute for Marine Research: Brage IMR
2
Magnolia press
2
National Institute of Polar Research Repository, Japan
2
ScienceDirect (Elsevier)
2
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
2
University College London: UCL Discovery
2
University of Groningen research database
2
Università degli Studi di Urbino: CINECA IRIS
2
Université de Genève: Archive ouverte UNIGE
2
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
eCite UTAS (University of Tasmania)
2
Aarhus University: Research
1
AgroParisTech: HAL (Institut des sciences et industries du vivant et de l'environnement)
1
Aix-Marseille Université: HAL
1
Ambiente & Água (E-Journal, Universidade de Taubaté)
1
Apollo - University of Cambridge Repository
1
BioOne Online Journals
1
CIRAD: HAL (Agricultural Research for Development)
1
Caltech Authors (California Institute of Technology)
1
Canadian Science Publishing (via Crossref)
1
Cardiff University: ORCA (Online Research @ Cardiff)
1
DIGIBUG: Repositorio Institucional de la Universidad de Granada
1
Dipòsit Digital de la Universitat de Barcelona
1
Dokuz Eylül University Research Information System
1
ETH Zürich Research Collection
1
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