Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,304
PANGAEA - Data Publisher for Earth & Environmental Science
627
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
57
Directory of Open Access Journals: DOAJ Articles
57
Cambridge University Press
24
Unknown
22
Natural Environment Research Council: NERC Open Research Archive
21
Zenodo
20
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
17
Frontiers: Figshare
16
PubMed Central (PMC)
14
Wiley Online Library
13
Digital.CSIC (Spanish National Research Council)
12
Ghent University Academic Bibliography
12
MDPI Open Access Publishing
10
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
8
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
8
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
7
Copernicus Publications: E-Journals
6
Universidade Federal do Rio Grande do Sul (UFRGS): Lume
6
University of Groningen research database
6
De Gruyter (via Crossref)
5
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
5
Geological Quarterly
5
KovsieScholar Repository (University of the Free State - UFS UV)
5
Polar Research
5
ScienceDirect (Elsevier - via Crossref)
5
Unisinos (Universidade do Vale do Rio dos Sinos): SEER Unisinos
5
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
5
Universidad de Chile: Repositorio académico
5
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Biodiversity Heritage Library (BHL)
4
HighWire Press (Stanford University)
4
Niedersächsisches Online-Archiv NOA
4
University of Southampton: e-Prints Soton
4
University of São Paulo: Digital Library of Theses and Dissertations
4
Université de Nantes: HAL-UNIV-NANTES
4
Dryad Digital Repository (Duke University)
3
Frontiers (Publisher)
3
IEDA: US Antarctic Program Data Center (via DataONE)
3
LSU Digital Commons (Louisiana State University)
3
Masaryk University Journals
3
Max Planck Society: MPG.PuRe
3
National Institute of Polar Research Repository, Japan
3
Periódicos Científicos da UFRGS (Universidade Federal do Rio Grande do Sul)
3
RI FURG (Repositório da Universidade Federal do Rio Grande)
3
Repositorio Institucional del INGEMMET
3
Springer Nature (via Crossref)
3
The Royal Society
3
The Royal Society: Figshare
3
more ...