Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
105
PANGAEA - Data Publisher for Earth & Environmental Science
105
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
2
Copernicus Publications: E-Journals
2
Niedersächsisches Online-Archiv NOA
1
Vrije Universiteit Amsterdam (VU): Research Portal
1