Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
33
Unknown
25
Directory of Open Access Journals: DOAJ Articles
21
Dryad Digital Repository (Duke University)
16
Frontiers: Figshare
12
Zenodo
12
Aarhus University: Research
10
Umeå University: Publications (DiVA)
10
Digital.CSIC (Spanish National Research Council)
7
HELDA – University of Helsinki Open Repository
6
KovsieScholar Repository (University of the Free State - UFS UV)
6
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
5
University of Groningen research database
5
Université de Nantes: HAL-UNIV-NANTES
5
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
4
Lund University Publications (LUP)
4
The Royal Society: Figshare
4
The World Bank: Open Knowledge Repository (OKR)
4
Université Grenoble Alpes: HAL
4
Université Savoie Mont Blanc: HAL
4
Opin vísindi (Iceland)
3
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX)
3
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
3
CyberLeninka (Scientific Electronic Library)
2
Ghent University Academic Bibliography
2
Høgskulen på Vestlandet: HVL Open
2
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
2
Knowledge Network for Biocomplexity (via DataONE)
2
Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences)
2
The Canadian Field-Naturalist (E-Journal)
2
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
2
University of Bergen: Bergen Open Research Archive (BORA-UiB)
2
University of California: eScholarship
2
University of Gothenburg: GUPEA (Gothenburg University Publications Electronic Archive)
2
Università degli Studi di Ferrara: CINECA IRIS
2
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
2
Université de Montpellier: HAL
2
Uppsala University: Publications (DiVA)
2
eCite UTAS (University of Tasmania)
2
AJOL - African Journals Online
1
Apollo - University of Cambridge Repository
1
Archive Ouverte de l'Université Rennes (HAL)
1
Bogdan Chmelnitskiy Melitopol State Pedagogical University: Open Journals
1
CQUniversity: acquire
1
Charles University CU Digital repository
1
DIAL@UCLouvain (Université catholique de Louvain)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Digital Commons University of South Florida (USF)
1
Edinburgh Napier Repository (Napier University Edinburgh)
1
Edinburgh Research Archive (ERA - University of Edinburgh)
1
more ...