Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
4,128
Zenodo
362
Directory of Open Access Journals: DOAJ Articles
282
Unknown
224
Cambridge University Press
221
DataCite
217
Università degli Studi di Genova: CINECA IRIS
112
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
108
Natural Environment Research Council: NERC Open Research Archive
108
PANGAEA - Data Publisher for Earth & Environmental Science
103
IEDA: Marine-Geo Digital Library (via DataONE)
100
Copernicus Publications: E-Journals
85
Università degli Studi di Siena: USiena air
85
PubMed Central (PMC)
84
Research Data Australia (Australian National Data Service - ANDS)
80
eCite UTAS (University of Tasmania)
72
IEDA: US Antarctic Program Data Center (via DataONE)
70
Wiley Online Library
70
University of Canterbury, Christchurch: UC Research Repository
63
ARPI - Archivio della Ricerca dell'Università di Pisa
59
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
57
Frontiers: Figshare
55
University of California: eScholarship
51
Università degli Studi di Napoli "Parthenope": CINECA IRIS
51
MDPI Open Access Publishing
49
Niedersächsisches Online-Archiv NOA
48
University of Tasmania: UTas ePrints
48
LSU Digital Commons (Louisiana State University)
47
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
47
LeibnizOpen (The Leibniz Association)
44
Institut national des sciences de l'Univers: HAL-INSU
43
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
42
Springer Nature (via Crossref)
42
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
41
Università Politecnica delle Marche: IRIS
40
Université de Nantes: HAL-UNIV-NANTES
40
Padua Research Archive (IRIS - Università degli Studi di Padova)
37
Defense Technical Information Center: DTIC Technical Reports database
34
ScienceDirect (Elsevier - via Crossref)
34
The University of Waikato: Research Commons
34
Frontiers (Publisher)
33
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
33
Università degli Studi di Messina: IRIS
32
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
31
The University of Maine: DigitalCommons@UMaine
30
W&M ScholarWorks
30
University of Southampton: e-Prints Soton
29
Digital Commons University of South Florida (USF)
25
Old Dominion University: ODU Digital Commons
25
University of South Florida St. Petersburg: Digital USFSP
25
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