Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
8
Columbia University: Academic Commons
7
Directory of Open Access Journals: DOAJ Articles
7
Macquarie University Research Portal
7
Natural Environment Research Council: NERC Open Research Archive
7
Università degli Studi di Genova: CINECA IRIS
6
Unknown
5
eCite UTAS (University of Tasmania)
5
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
3
Arctic Portal Library
2
Copernicus Publications: E-Journals
2
MDPI Open Access Publishing
2
Niedersächsisches Online-Archiv NOA
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
University of Tasmania: UTas ePrints
2
Washington University St. Louis: Open Scholarship
2
Caltech Authors (California Institute of Technology)
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
DIGIBUG: Repositorio Institucional de la Universidad de Granada
1
Harvard University: DASH - Digital Access to Scholarship at Harvard
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
NTNU Open Archive (Norwegian University of Science and Technology)
1
National Institute of Polar Research Repository, Japan
1
Peking University Institutional Repository (PKU IR)
1
ScienceDirect (Elsevier - via Crossref)
1
Technical University of Denmark: DTU Orbit
1
University of Alabama Institutional Repository
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1