Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
78,926
PANGAEA - Data Publisher for Earth & Environmental Science
10,139
Unknown
8,291
Directory of Open Access Journals: DOAJ Articles
7,167
Natural Environment Research Council: NERC Open Research Archive
6,521
Research Data Australia (Australian National Data Service - ANDS)
5,435
Cambridge University Press
5,137
Springer Nature (via Crossref)
4,775
Zenodo
4,396
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
4,108
ScienceDirect (Elsevier - via Crossref)
3,395
Ohio State University (OSU): Knowledge Bank
3,284
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3,170
National Institute of Polar Research Repository, Japan
2,996
eCite UTAS (University of Tasmania)
2,611
PubMed Central (PMC)
2,476
Informa (via Crossref)
2,411
Université de Nantes: HAL-UNIV-NANTES
2,253
Wiley Online Library (via Crossref)
2,150
Institut national des sciences de l'Univers: HAL-INSU
2,106
Copernicus Publications: E-Journals
1,984
LeibnizOpen (The Leibniz Association)
1,534
University of Tasmania: UTas ePrints
1,401
Niedersächsisches Online-Archiv NOA
1,331
Wiley Online Library
1,315
NASA Technical Reports Server (NTRS)
1,295
Digital.CSIC (Spanish National Research Council)
1,271
ScienceDirect (Elsevier)
1,247
University of California: eScholarship
1,053
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
990
National Library of Australia: Digital Collections
976
IEDA: Marine-Geo Digital Library (via DataONE)
932
MDPI Open Access Publishing
911
Frontiers: Figshare
882
Informa
879
HAL Sorbonne Université
877
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
873
Defense Technical Information Center: DTIC Technical Reports database
834
University of Southampton: e-Prints Soton
796
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
724
Oxford University Press (via Crossref)
707
IEDA: US Antarctic Program Data Center (via DataONE)
695
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
662
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
660
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
659
Université Grenoble Alpes: HAL
637
Australian National University: ANU Digital Collections
628
University of Canterbury, Christchurch: UC Research Repository
611
Arctic Data Center (via DataONE)
588
HighWire Press (Stanford University)
580
more ...