Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
20
Institute for Marine Research: Brage IMR
19
University of Tromsø: Munin Open Research Archive
19
PANGAEA - Data Publisher for Earth & Environmental Science
16
Directory of Open Access Journals: DOAJ Articles
12
Polar Research (E-Journal)
7
Unknown
7
Wiley Online Library
6
Copernicus Publications: E-Journals
5
Defense Technical Information Center: DTIC Technical Reports database
5
NTNU Open Archive (Norwegian University of Science and Technology)
5
Aarhus University: Research
4
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
4
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
4
University of Calgary Journal Hosting
4
University of Copenhagen: Research
4
Zenodo
4
Cambridge University Press
3
Niedersächsisches Online-Archiv NOA
3
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
2
Digital.CSIC (Spanish National Research Council)
2
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2
HighWire Press (Stanford University)
2
ScienceDirect (Elsevier - via Crossref)
2
Technical University of Denmark: DTU Orbit
2
University of Florida: Digital Library Center
2
University of Groningen research database
2
University of Southampton: e-Prints Soton
2
University of Tromsø: Septentrio Academic Publishing
2
ARPI - Archivio della Ricerca dell'Università di Pisa
1
Aarhus University: OJS at The State and University Library
1
Apollo - University of Cambridge Repository
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Dokuz Eylül University Research Information System
1
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
1
Ghent University Academic Bibliography
1
Instituto Español de Oceanografía: e-IEO
1
Jagiellonian University Repository
1
KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences)
1
KOPS - The Institutional Repository of the University of Konstanz
1
Lund University Publications (LUP)
1
Minerva - Repositorio institucional da Universidade de Santiago de Compostela (USC)
1
NGU Open Archive (Geological Survey of Norway)
1
National Institute of Polar Research Repository, Japan
1
Natural Environment Research Council: NERC Open Research Archive
1
Norsk Polarinstitutt: Brage NP
1
Norwegian Polar Institute: Brage NP
1
OpenAgrar (OA)
1
Oxford University Press (via Crossref)
1
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University)
1
more ...