Content Provider
Directory of Open Access Journals: DOAJ Articles
4
Copernicus Publications: E-Journals
3
KU Leuven: Lirias
3
DataCite Metadata Store (German National Library of Science and Technology)
2
Niedersächsisches Online-Archiv NOA
2
eCite UTAS (University of Tasmania)
2
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
National Institute of Polar Research Repository, Japan
1
PubMed Central (PMC)
1
The University of Adelaide: Digital Library
1
University of California: eScholarship
1
University of Canterbury, Christchurch: UC Research Repository
1
University of Tasmania: UTas ePrints
1
Università degli Studi di Napoli "Parthenope": CINECA IRIS
1
Zenodo
1