Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
27
DataCite Metadata Store (German National Library of Science and Technology)
26
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
10
Copernicus Publications: E-Journals
7
Zenodo
3
Frontiers (Publisher)
2
IOP Publishing
2
Niedersächsisches Online-Archiv NOA
2
Clark University: Clark Digital Commons
1
German Aerospace Center: elib - DLR electronic library
1
Informa
1
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
1
ScienceDirect (Elsevier - via Crossref)
1
University of Potsdam: publish.UP
1