Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
29
Directory of Open Access Journals: DOAJ Articles
9
University of Otago: Research Archive (OUR Archive)
8
The University of Waikato: Research Commons
6
University of Canterbury, Christchurch: UC Research Repository
6
Lund University Publications (LUP)
5
The University of Adelaide: Digital Library
5
University of Southampton: e-Prints Soton
5
Unknown
5
MDPI Open Access Publishing
4
PubMed Central (PMC)
4
University of Washington, Seattle: Digital Collections
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
Copernicus Publications: E-Journals
3
Digital.CSIC (Spanish National Research Council)
3
Natural Environment Research Council: NERC Open Research Archive
3
Niedersächsisches Online-Archiv NOA
3
Research UNE - University of New England at Armidale, NSW Australia
3
University of Copenhagen: Research
3
Victoria University of Wellington: ResearchArchive
3
Aarhus University: Research
2
Cambridge University Press
2
Hathi Trust Digital Library
2
Jultika - University of Oulu repository
2
Lincoln University (New Zealand): Lincoln U Research Archive
2
NIOZ Repository (Royal Netherlands Institute for Sea Research)
2
NTNU Open Archive (Norwegian University of Science and Technology)
2
Ohio State University (OSU): Knowledge Bank
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
ScienceDirect (Elsevier - via Crossref)
2
Stockholm University: Publications (DiVA)
2
The University of Queensland: UQ eSpace
2
The University of Texas at Austin: Texas ScholarWorks
2
Umeå University: Publications (DiVA)
2
Universidad de Chile: Repositorio académico
2
University of Bergen: Bergen Open Research Archive (BORA-UiB)
2
University of Glasgow: Enlighten - Publications
2
University of North Texas: UNT Digital Library
2
University of Tromsø: Munin Open Research Archive
2
Université de Nantes: HAL-UNIV-NANTES
2
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
AU Digital Research Archive (American University)
1
Archivio della ricerca dell'Università di Parma (CINECA IRIS)
1
Australian Nuclear Science and Technology Organisation: ANSTO Publications Online
1
BioOne Online Journals
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
CaltechTHESIS (California Institute of Technology
1
Cambridge University Press (via Crossref)
1
Columbia University: Academic Commons
1
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