Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
89
ESS-DIVE: Deep Insight for Earth Science Data (via DataONE)
26
Arctic Data Center (via DataONE)
22
Directory of Open Access Journals: DOAJ Articles
7
NOAA NCEI Environmental Data Archive (via DataONE)
6
Unknown
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Carolina Digital Repository (UNC - University of North Carolina)
2
ETH Zürich Research Collection
2
MDPI Open Access Publishing
2
Université de Nantes: HAL-UNIV-NANTES
2
AgroParisTech: HAL (Institut des sciences et industries du vivant et de l'environnement)
1
Açık Erişim@BUU (Bursa Uludağ Üniversitesi)
1
Clark University: Clark Digital Commons
1
CyberLeninka (Scientific Electronic Library)
1
Czech Academy of Sciences: dKNAV
1
Environmental Protection Agency (EPA): Science Inventory
1
Frontiers: Figshare
1
HAL Lyon 1 (University Claude Bernard Lyon 1)
1
Korea Advanced Institute of Science and Technology: KOASAS - KAIST Open Access Self-Archiving System
1
OPARU (OPen Access Repository of Ulm University)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
PRISM - University of Calgary Digital Repository
1
Polar Research
1
Technical University of Denmark: DTU Orbit
1
University of Groningen research database
1
Université de Lyon: HAL
1
VTechWorks (VirginiaTech)
1