Content Provider
University of Calgary Journal Hosting
14
Unknown
5
DataCite Metadata Store (German National Library of Science and Technology)
4
Old Dominion University: ODU Digital Commons
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
Arctic Data Center (via DataONE)
3
Digital.CSIC (Spanish National Research Council)
3
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
3
Université de Nantes: HAL-UNIV-NANTES
3
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
3
Columbia University: Academic Commons
2
Defense Technical Information Center: DTIC Technical Reports database
2
Directory of Open Access Journals: DOAJ Articles
2
National Institute of Polar Research Repository, Japan
2
University of Alaska: ScholarWorks@UA
2
Digital Commons University of South Florida (USF)
1
Digital Repository @ Iowa State University
1
Institut national des sciences de l'Univers: HAL-INSU
1
Open Access Victoria University of Wellington / Te Herenga Waka
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
USGS Science Data Catalog (via DataONE)
1
University of Massachusetts: ScholarWorks@UMass Amherst
1
University of Michigan: Digital Collections
1
University of South Florida St. Petersburg: Digital USFSP
1
Victoria University of Wellington: ResearchArchive
1
Xiamen University Institutional Repository
1
Zenodo
1