Content Provider
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
3
DataCite Metadata Store (German National Library of Science and Technology)
2
Georg-August-Universität Göttingen: GoeScholar
2
GEO-LEOe-docs (FID GEO)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
PubMed Central (PMC)
1
The Royal Society (via Crossref)
1