Content Provider
Defense Technical Information Center: DTIC Technical Reports database
25
DataCite Metadata Store (German National Library of Science and Technology)
13
Directory of Open Access Journals: DOAJ Articles
9
Copernicus Publications: E-Journals
7
Unknown
5
Ohio State University (OSU): Knowledge Bank
4
Technical University of Denmark: DTU Orbit
4
Wiley Online Library
4
Aarhus University: Research
3
Niedersächsisches Online-Archiv NOA
3
PANGAEA - Data Publisher for Earth & Environmental Science
3
PubMed Central (PMC)
3
University of Copenhagen: Research
3
Arctic Council Repository
2
Cambridge University Press
2
LaCRIS - University of Lapland Current Research System
2
Max Planck Society: MPG.PuRe
2
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
2
Umeå University: Publications (DiVA)
2
University of California: eScholarship
2
University of Waterloo, Canada: Institutional Repository
2
Aalborg University's Research Portal
1
Akademicka Platforma Czasopism
1
Akademicka Platforma Czasopism (APCZ)
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Archives ouvertes de Paris-Saclay
1
Arctic Portal Library
1
Cornell University: eCommons@Cornell
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
De Gruyter (via Crossref)
1
ETH Zürich Research Collection
1
Georg-August-Universität Göttingen: GoeScholar
1
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
1
Institut national des sciences de l'Univers: HAL-INSU
1
Journals at the University of Arizona
1
NILU – Norwegian Institute for Air Research: NILU Brage
1
Natural Environment Research Council: NERC Open Research Archive
1
Padua Research Archive (IRIS - Università degli Studi di Padova)
1
Polar Research (E-Journal)
1
Publication Database PIK (Potsdam Institute for Climate Impact Research)
1
RUcore - Rutgers University Community Repository
1
SAGE Publications (via Crossref)
1
ScholarsArchive@OSU (Oregon State University)
1
ScienceDirect (Elsevier - via Crossref)
1
Skemman (Iceland)
1
TU Darmstadt: tuprints
1
TUScholarShare (Temple University)
1
The University of Brighton Research Portal
1
The University of Nottingham: Nottingham ePrints
1
University of Alberta: Era - Education and Research Archive
1
more ...