Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
144
DataCite Metadata Store (German National Library of Science and Technology)
99
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
47
Springer Nature (via Crossref)
4
Copernicus Publications: E-Journals
3
Niedersächsisches Online-Archiv NOA
3
Natural Environment Research Council: NERC Open Research Archive
2
ScienceDirect (Elsevier - via Crossref)
2
HELDA – University of Helsinki Open Repository
1
Schweizerbart Science Publishers (via Crossref)
1
ScienceDirect (Elsevier)
1
Wiley Online Library (via Crossref)
1