Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
103
Digital.CSIC (Spanish National Research Council)
50
Instituto Español de Oceanografía: e-IEO
45
Directory of Open Access Journals: DOAJ Articles
34
Institute for Marine Research: Brage IMR
28
Unknown
26
PubMed Central (PMC)
23
Wiley Online Library
23
Canadian Science Publishing
14
HighWire Press (Stanford University)
13
Memorial University of Newfoundland: Research Repository
13
Canadian Science Publishing (via Crossref)
12
Oxford University Press
11
Technical University of Denmark: DTU Orbit
11
Frontiers: Figshare
10
PANGAEA - Data Publisher for Earth & Environmental Science
9
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
9
Oxford University Press (via Crossref)
8
University of Bergen: Bergen Open Research Archive (BORA-UiB)
8
Zenodo
8
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
7
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
6
The Royal Society
6
BioMed Central
5
Cambridge University Press
5
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
5
OpenAgrar (OA)
5
Skemman (Iceland)
5
Springer Nature (via Crossref)
5
University of the Highlands and Islands: Research Database of UHI
5
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
4
PeerJ Publishing
4
University of East Anglia: UEA Digital Repository
4
Aarhus University: Research
3
Apollo - University of Cambridge Repository
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
Dalhousie University: DalSpace Institutional Repository
3
Dryad Digital Repository (Duke University)
3
Frontiers (Publisher)
3
KU Leuven: Lirias
3
Open archive Norwegian University of Life Sciences: Brage NMBU
3
Sapienza Università di Roma: CINECA IRIS
3
ScienceDirect (Elsevier)
3
The University of Maine: DigitalCommons@UMaine
3
University of Copenhagen: Research
3
University of the Sunshine Coast, Queensland, Australia: COAST Research Database
3
Université de Nantes: HAL-UNIV-NANTES
3
Wageningen UR (University & Research Centre): Digital Library
3
ADDI: Repositorio Institucional de la Universidad del País Vasco (UPV)
2
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
2
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