Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,250
Arctic Data Center (via DataONE)
69
PANGAEA - Data Publisher for Earth & Environmental Science
65
Directory of Open Access Journals: DOAJ Articles
28
Unknown
26
Natural Environment Research Council: NERC Open Research Archive
21
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
18
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
10
Digital.CSIC (Spanish National Research Council)
8
MDPI Open Access Publishing
8
PubMed Central (PMC)
8
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
6
Cambridge University Press
6
Copernicus Publications: E-Journals
6
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
5
Niedersächsisches Online-Archiv NOA
5
Zenodo
5
eCite UTAS (University of Tasmania)
5
IEDA: US Antarctic Program Data Center (via DataONE)
4
Institut national des sciences de l'Univers: HAL-INSU
4
National Institute of Polar Research Repository, Japan
4
Research Data Australia (Australian National Data Service - ANDS)
4
University of California: eScholarship
4
Apollo - University of Cambridge Repository
3
Charles University CU Digital repository
3
HAL Sorbonne Université
3
HELDA – University of Helsinki Open Repository
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
NASA Technical Reports Server (NTRS)
3
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
3
University of British Columbia: cIRcle - UBC's Information Repository
3
University of Groningen research database
3
University of Southampton: e-Prints Soton
3
Wiley Online Library
3
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
3
Archive de l'Observatoire de Paris (HAL)
2
Frontiers: Figshare
2
Ice and Snow (E-Journal)
2
LSU Digital Commons (Louisiana State University)
2
Max Planck Society: MPG.PuRe
2
Northumbria University, Newcastle: Northumbria Research Link (NRL)
2
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
2
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences)
2
The Hong Kong University of Science and Technology: HKUST Institutional Repository
2
The University of Brighton Research Portal
2
The University of Waikato: Research Commons
2
Theses Canada/Thèses Canada (Library and Archives Canada)
2
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX)
2
University of Bristol: Bristol Research
2
University of Calgary Journal Hosting
2
more ...