Content Provider
University of Southern Denmark Research Portal
237
PubMed Central (PMC)
45
University of Copenhagen: Research
39
Informa (via Crossref)
32
Informa
25
DataCite Metadata Store (German National Library of Science and Technology)
22
ScienceDirect (Elsevier - via Crossref)
22
Springer Nature (via Crossref)
17
Aarhus University: Research
13
ScienceDirect (Elsevier)
9
University of Alberta: Era - Education and Research Archive
8
SAGE Publications
6
University of Toronto Press (U Toronto Press - via Crossref)
6
University of Tromsø: Munin Open Research Archive
6
Unknown
6
PLOS
5
SAGE Publications (via Crossref)
5
Apollo - University of Cambridge Repository
4
The University of Western Ontario: Scholarship@Western
4
Wiley Online Library
4
Wiley Online Library (via Crossref)
4
Aalborg University's Research Portal
3
Cambridge University Press
3
Umeå University: Publications (DiVA)
3
Universidade Federal de São Paulo (UNIFESP): Repositório Institucional
3
University of California: eScholarship
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Arctic Institute of North America (via Crossref)
2
BioMed Central
2
LillOA (HAL Lille Open Archive, Université de Lille)
2
Oxford University Press (via Crossref)
2
PUB - Publications at Bielefeld University
2
Réseau International des Instituts Pasteur, Paris: HAL-RIIP
2
University of Calgary Journal Hosting
2
Université Toulouse III - Paul Sabatier: HAL-UPS
2
AAAS Resource Center (American Association for the Advancement of Science)
1
Architecture, Design and Conservation - Danish Portal for Artistic and Scientific Research: Research Outputs
1
Arctic Council Repository
1
Arctic Portal Library
1
Cambridge University Press (via Crossref)
1
Canadian Science Publishing
1
Georgetown University: DigitalGeorgetown
1
Ghent University Academic Bibliography
1
HELDA – University of Helsinki Open Repository
1
HighWire Press (Stanford University)
1
Høgskulen på Vestlandet: HVL Open
1
JSTOR (via Crossref)
1
LillOA (Lille Open Archive - Université de Lille)
1
Middlesex University London: Research Repository
1
NTNU Open Archive (Norwegian University of Science and Technology)
1
more ...