Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,696
Directory of Open Access Journals: DOAJ Articles
15
Niedersächsisches Online-Archiv NOA
7
Opin vísindi (Iceland)
6
ScienceDirect (Elsevier)
6
Springer Nature (via Crossref)
6
Cambridge University Press
4
IRIS Università degli Studi di Napoli Federico II
3
UNESDOC - UNESCO Digital Library
3
University of Bergen: Bergen Open Research Archive (BORA-UiB)
3
University of California: eScholarship
3
Unknown
3
Biodiversity Heritage Library (BHL)
2
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
2
Informa (via Crossref)
2
Institut national des sciences de l'Univers: HAL-INSU
2
Lund University Publications (LUP)
2
ScienceDirect (Elsevier - via Crossref)
2
Technical University of Denmark: DTU Orbit
2
University of Copenhagen: Research
2
Zenodo
2
eCite UTAS (University of Tasmania)
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Brill
1
Caltech Authors (California Institute of Technology)
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
Frontiers (Publisher)
1
HAL Clermont Auvergne (Université Blaise Pascal Clermont-Ferrand/Université d'Auvergne)
1
HELDA – University of Helsinki Open Repository
1
IRUA - Institutional Repository van de Universiteit Antwerpen
1
La Trobe University (Melbourne): Research Online
1
Maynooth University ePrints and eTheses Archive (National University of Ireland)
1
Polar Research (E-Journal)
1
RePEc (Research Papers in Economics)
1
Roskilde University Research Portal (RUC)
1
The Cupola - Scholarship at Gettysburg College
1
University of Greenwich: Greenwich Academic Literature Archive
1
Université Jean Monnet – Saint-Etienne: HAL
1
Université de Lyon: HAL
1
Université de Montpellier: HAL
1
Université de Nantes: HAL-UNIV-NANTES
1
Université des Antilles (UAG): HAL
1
e-periodica (Swiss journals online, ETH Zurich)
1