Content Provider
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
9
DataCite Metadata Store (German National Library of Science and Technology)
4
NORA (National aggregator of open repositories of Russian universities)
4
Wiley Online Library
4
Directory of Open Access Journals: DOAJ Articles
3
Kazan Federal University Digital Repository
3
Cambridge University Press
2
Frontiers (Publisher)
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
RePEc (Research Papers in Economics)
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Arctic Portal Library
1
Cologne University: KUPS
1
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
1
Max Planck Society: MPG.PuRe
1
Murdoch University: Murdoch Research Repository
1
Niedersächsisches Online-Archiv NOA
1
Tomas Bata University Zlin: TBU publications
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
University of Gloucestershire: Research Repository
1
University of Potsdam: publish.UP
1
University of Southampton: e-Prints Soton
1
University of Sussex: Sussex Research Online
1
Université de Nantes: HAL-UNIV-NANTES
1
Unknown
1
Vrije Universiteit Amsterdam (VU): Research Portal
1