Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
79,288
PANGAEA - Data Publisher for Earth & Environmental Science
10,164
Unknown
8,294
Directory of Open Access Journals: DOAJ Articles
7,167
Natural Environment Research Council: NERC Open Research Archive
6,538
Research Data Australia (Australian National Data Service - ANDS)
5,435
Cambridge University Press
5,155
Springer Nature (via Crossref)
4,775
Zenodo
4,396
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
4,117
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
Université de Nantes: HAL-UNIV-NANTES
2,253
Informa (via Crossref)
2,155
Institut national des sciences de l'Univers: HAL-INSU
2,125
Copernicus Publications: E-Journals
1,984
Wiley Online Library (via Crossref)
1,779
Wiley Online Library
1,762
LeibnizOpen (The Leibniz Association)
1,534
University of Tasmania: UTas ePrints
1,401
Niedersächsisches Online-Archiv NOA
1,356
NASA Technical Reports Server (NTRS)
1,295
Digital.CSIC (Spanish National Research Council)
1,272
ScienceDirect (Elsevier)
1,247
Informa
1,141
University of California: eScholarship
1,057
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
896
HAL Sorbonne Université
883
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
875
Defense Technical Information Center: DTIC Technical Reports database
834
University of Southampton: e-Prints Soton
798
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
733
IEDA: US Antarctic Program Data Center (via DataONE)
695
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
666
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
662
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
659
Université Grenoble Alpes: HAL
643
Oxford University Press (via Crossref)
634
Australian National University: ANU Digital Collections
630
University of Canterbury, Christchurch: UC Research Repository
611
Arctic Data Center (via DataONE)
588
HighWire Press (Stanford University)
580
more ...