Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
342
Natural Environment Research Council: NERC Open Research Archive
299
Zenodo
105
Cambridge University Press
61
AU Digital Research Archive (American University)
34
Directory of Open Access Journals: DOAJ Articles
34
Springer Nature (via Crossref)
30
Digital.CSIC (Spanish National Research Council)
27
Unknown
25
Wiley Online Library (via Crossref)
22
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
20
Institute for Marine Research: Brage IMR
16
PubMed Central (PMC)
15
Research Data Australia (Australian National Data Service - ANDS)
15
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
14
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
13
Wiley Online Library
13
David Rumsey Historical Map Collection (Cartography Associates)
12
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
11
Instituto Español de Oceanografía: e-IEO
10
PANGAEA - Data Publisher for Earth & Environmental Science
10
Northumbria University, Newcastle: Northumbria Research Link (NRL)
9
Digital Commons University of South Florida (USF)
8
MDPI Open Access Publishing
8
Technical University of Denmark: DTU Orbit
8
University of Southampton: e-Prints Soton
8
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
7
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria)
7
Oxford University Press (via Crossref)
7
University College London: UCL Discovery
7
University of St Andrews: Research Portal
7
Biodiversity Heritage Library (BHL)
6
Informa (via Crossref)
6
National Institute of Polar Research Repository, Japan
6
eCite UTAS (University of Tasmania)
6
Anglia Ruskin University: Anglia Ruskin Research Online (ARRO)
5
Anglia Ruskin University: Figshare
5
HighWire Press (Stanford University)
5
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
5
OpenAgrar (OA)
5
ScienceDirect (Elsevier - via Crossref)
5
ScienceDirect (Elsevier)
5
The Royal Society (via Crossref)
5
University of Malaya: UM Institutional Repository
5
Arctic Portal Library
4
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
4
De Gruyter (via Crossref)
4
National Library of Australia: Digital Collections
4
Norwegian Institute for Nature Research: Brage NINA
4
Pensoft Publishers
4
more ...