Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
11,290
Research Data Australia (Australian National Data Service - ANDS)
5
Unknown
5
Zenodo
5
Digital.CSIC (Spanish National Research Council)
3
University of Lethbridge Digitized Collections
2
University of Otago: Research Archive (OUR Archive)
2
Wiley Online Library
2
Wiley Online Library (via Crossref)
2
ASI Research Portal (Arkansas Studies Institute Catalog)
1
Archivio della ricerca dell'Università di Parma (CINECA IRIS)
1
COS Center for Open Science (via Crossref)
1
CentAUR: Central Archive at the University of Reading
1
Copernicus Publications: E-Journals
1
DIGIBUG: Repositorio Institucional de la Universidad de Granada
1
DORA Eawag
1
Dipòsit Digital de la Universitat de Barcelona
1
Directory of Open Access Journals: DOAJ Articles
1
ETH Zürich Research Collection
1
Frontiers (Publisher)
1
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
1
HELDA – University of Helsinki Open Repository
1
HighWire Press (Stanford University)
1
IRUA - Institutional Repository van de Universiteit Antwerpen
1
IssueLab (Nonprofit Research)
1
Jultika - University of Oulu repository
1
Kew Research Repository
1
LaCRIS - University of Lapland Current Research System
1
Lund University Publications (LUP)
1
NTNU Open Archive (Norwegian University of Science and Technology)
1
Niedersächsisches Online-Archiv NOA
1
Pontificia Universidad Católica de Chile: Repositorio UC
1
Qatar University: QU Institutional Repository
1
RERO DOC Digital Library
1
Saint Mary's University, Halifax: Institutional Repository
1
Technical University of Crete: Institutional Repository
1
The University of Utah: J. Willard Marriott Digital Library
1
UFZ - Publication Index (Helmholtz-Centre for Environmental Research)
1
Umeå University: Publications (DiVA)
1
Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP
1
University College London: UCL Discovery
1
University of Auckland Research Repository - ResearchSpace
1
University of Basel: edoc
1
University of Bristol: Bristol Research
1
University of British Columbia: cIRcle - UBC's Information Repository
1
University of Calgary Journal Hosting
1
University of Copenhagen: Research
1
University of Glasgow: Enlighten - Publications
1
University of Malta: OAR@UM
1
University of Nebraska-Lincoln: DigitalCommons@UNL
1
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