Content Provider
Directory of Open Access Journals: DOAJ Articles
79
DataCite Metadata Store (German National Library of Science and Technology)
56
Natural Environment Research Council: NERC Open Research Archive
52
eCite UTAS (University of Tasmania)
37
Unknown
36
Cambridge University Press
35
Niedersächsisches Online-Archiv NOA
35
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
34
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
29
Université de Nantes: HAL-UNIV-NANTES
29
ScienceDirect (Elsevier - via Crossref)
27
University of California: eScholarship
23
Springer Nature (via Crossref)
21
Durham University: Durham Research Online
20
LeibnizOpen (The Leibniz Association)
19
University of Southampton: e-Prints Soton
17
ARPI - Archivio della Ricerca dell'Università di Pisa
16
Imperial College London: Spiral
16
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
13
Utrecht University Repository
13
Australian Nuclear Science and Technology Organisation: ANSTO Publications Online
12
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
11
Columbia University: Academic Commons
10
University of Glasgow: Enlighten - Publications
10
Australian National University: ANU Digital Collections
9
University of Tasmania: UTas ePrints
9
Institut national des sciences de l'Univers: HAL-INSU
8
University College London: UCL Discovery
8
Università degli Studi di Siena: USiena air
8
Digital Commons University of South Florida (USF)
7
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
7
The University of Queensland: UQ eSpace
7
University of Cambridge, Department of Earth Sciences: ESC Publications
7
University of South Florida St. Petersburg: Digital USFSP
7
Wiley Online Library (via Crossref)
7
Arctic Portal Library
6
BORIS (Bern Open Repository and Information System, University of Bern)
6
Curtin University: espace
6
NOVA: The University of Newcastle Research Online (Australia)
6
ScienceDirect (Elsevier)
6
University of Bristol: Bristol Research
6
University of Canberra Research Portal
6
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
5
Digital.CSIC (Spanish National Research Council)
5
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
5
Harvard University: DASH - Digital Access to Scholarship at Harvard
5
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
5
Cardiff University: ORCA (Online Research @ Cardiff)
4
Cologne University: KUPS
4
Lancaster University: Lancaster Eprints
4
more ...