Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
233
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
2
Copernicus Publications: E-Journals
2
Directory of Open Access Journals: DOAJ Articles
2
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
2
Niedersächsisches Online-Archiv NOA
2
CyberLeninka (Scientific Electronic Library)
1
Defense Technical Information Center: DTIC Technical Reports database
1
Delft University of Technology: Institutional Repository
1
National Institute of Polar Research Repository, Japan
1
OPUS - Publication Server of the University of Stuttgart
1
OpenAgrar (OA)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
University of Tromsø: Septentrio Academic Publishing
1