Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
465
Zenodo
190
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
3
Kazan Federal University Digital Repository
2
NORA (National aggregator of open repositories of Russian universities)
2
CyberLeninka (Scientific Electronic Library)
1
USGS Science Data Catalog (via DataONE)
1