Content Provider
Defense Technical Information Center: DTIC Technical Reports database
28
DataCite Metadata Store (German National Library of Science and Technology)
8
Directory of Open Access Journals: DOAJ Articles
7
Copernicus Publications: E-Journals
5
Unknown
4
Aarhus University: Research
3
Arctic Council Repository
3
Niedersächsisches Online-Archiv NOA
3
Northumbria University, Newcastle: Northumbria Research Link (NRL)
3
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
3
PANGAEA - Data Publisher for Earth & Environmental Science
3
Vrije Universiteit Amsterdam (VU): Research Portal
3
Wiley Online Library
3
Apollo - University of Cambridge Repository
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
DORA Eawag
2
Institut national des sciences de l'Univers: HAL-INSU
2
Lund University Publications (LUP)
2
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
2
PubMed Central (PMC)
2
Technical University of Denmark: DTU Orbit
2
University of Bergen: Bergen Open Research Archive (BORA-UiB)
2
University of Potsdam: publish.UP
2
University of Tromsø: Munin Open Research Archive
2
University of the Highlands and Islands: Research Database of UHI
2
Arctic Portal Library
1
Bangor University: Research Portal
1
BioOne Online Journals
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
DataverseNL
1
Digital Collections of Colorado (Colorado State University)
1
Digital.CSIC (Spanish National Research Council)
1
ETH Zürich Research Collection
1
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
1
GEO-LEOe-docs (FID GEO)
1
HAL Sorbonne Université
1
IntechOpen (E-Books)
1
LaCRIS - University of Lapland Current Research System
1
MDPI Open Access Publishing
1
MSpace at the University of Manitoba
1
Max Planck Society: MPG.PuRe
1
Mountain Scholar (Digital Collections of Colorado and Wyoming)
1
Météo-France: HAL
1
Natural Environment Research Council: NERC Open Research Archive
1
Norwegian Institute of Bioeconomy Research: NIBIO Brage
1
ORA - Oxford University Research Archive
1
Ohio State University (OSU): Knowledge Bank
1
Open Research Library
1
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University)
1
Polar Research
1
more ...