Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
2,142
DataCite Metadata Store (German National Library of Science and Technology)
100
USGS Science Data Catalog (via DataONE)
28
Defense Technical Information Center: DTIC Technical Reports database
5
University of Calgary Journal Hosting
5
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
3
Aarhus University: Research
1
Carolina Digital Repository (UNC - University of North Carolina)
1
Digital.CSIC (Spanish National Research Council)
1
Instituto Español de Oceanografía: e-IEO
1
University of Alberta: Era - Education and Research Archive
1