Content Provider
Unknown
14
DataCite Metadata Store (German National Library of Science and Technology)
13
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
8
Defense Technical Information Center: DTIC Technical Reports database
7
Directory of Open Access Journals: DOAJ Articles
7
Copernicus Publications: E-Journals
5
Institut national des sciences de l'Univers: HAL-INSU
5
Université de Nantes: HAL-UNIV-NANTES
5
Aarhus University: OJS at The State and University Library
4
Aarhus University: Research
4
Niedersächsisches Online-Archiv NOA
4
Tidsskrift.dk (The Royal Library, Denmark)
4
MDPI Open Access Publishing
3
Naval Postgraduate School: Calhoun
3
University of Calgary Journal Hosting
3
Canadian Science Publishing (via Crossref)
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
University of Alberta: Era - Education and Research Archive
2
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
2
VIURRSpace (Royal Roads University and Vancouver Island University)
2
uO Research (University of Ottawa - uOttawa)
2
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Archives ouvertes de Paris-Saclay
1
Cambridge University Press
1
Dalhousie University: DalSpace Institutional Repository
1
EPHE (Ecole pratique des hautes études, Paris): HAL
1
ETH Zürich Research Collection
1
Edinburgh University Press (via Crossref)
1
HELDA – University of Helsinki Open Repository
1
Harvard University: Harvard Collections
1
HighWire Press (Stanford University)
1
Institut national de la recherche scientifique, Québec: Espace INRS
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
1
National Research Council Canada: NRC Publications Archive
1
ORA - Oxford University Research Archive
1
OSKAR Bordeaux (Open Science Knowledge ARchive)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Springer Nature (via Crossref)
1
University of Copenhagen: Research
1
University of the Highlands and Islands: Research Database of UHI
1
Université Laval: CorpusUL
1
Vancouver Island University: Viuspace
1
Wiley Online Library
1
Zenodo
1