Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
497
Directory of Open Access Journals: DOAJ Articles
128
Zenodo
119
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
118
Cambridge University Press
109
Digital.CSIC (Spanish National Research Council)
100
Natural Environment Research Council: NERC Open Research Archive
94
University of Michigan: Digital Collections
92
Springer Nature (via Crossref)
74
Unknown
65
DataCite
64
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
62
Wiley Online Library
44
PANGAEA - Data Publisher for Earth & Environmental Science
43
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
39
ScienceDirect (Elsevier - via Crossref)
36
PubMed Central (PMC)
33
Frontiers: Figshare
29
Dipòsit Digital de la Universitat de Barcelona
25
ScienceDirect (Elsevier)
23
LeibnizOpen (The Leibniz Association)
22
Dryad Digital Repository (Duke University)
21
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
21
MDPI Open Access Publishing
19
Research Data Australia (Australian National Data Service - ANDS)
19
Universidade de Lisboa: repositório.UL
18
IEDA: Marine-Geo Digital Library (via DataONE)
17
Biodiversity Heritage Library (BHL)
16
Arctic Portal Library
13
David Rumsey Historical Map Collection (Cartography Associates)
13
Ghent University Academic Bibliography
13
Universidad de Las Palmas de Gran Canaria: Acceda
13
AU Digital Research Archive (American University)
12
De Gruyter (via Crossref)
12
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
12
IRUA - Institutional Repository van de Universiteit Antwerpen
11
National Institute of Polar Research Repository, Japan
11
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
11
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
10
Geological Quarterly
10
Instituto Español de Oceanografía: e-IEO
10
LSU Digital Commons (Louisiana State University)
10
Copernicus Publications: E-Journals
9
Digital Commons University of South Florida (USF)
9
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
9
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
9
Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP
9
Frontiers (Publisher)
8
Masaryk University Journals
8
Pensoft Publishers
8
more ...