Content Provider
SAGE Publications (via Crossref)
26
SAGE Publications
21
Springer Nature (via Crossref)
16
ScienceDirect (Elsevier)
9
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
9
Canadian Science Publishing (via Crossref)
7
Informa (via Crossref)
7
ScienceDirect (Elsevier - via Crossref)
7
Frontiers (Publisher)
6
Sciendo (de Gruyter - via CrossRef)
5
Universidad de Chile: Repositorio académico
4
De Gruyter (via Crossref)
3
Opin vísindi (Iceland)
2
University of Liège: ORBi (Open Repository and Bibliography)
2
University of Nottingham: Repository@Nottingham
2
Utrecht University Repository
2
Wiley Online Library
2
Caltech Authors (California Institute of Technology)
1
Carleton University's Institutional Repository
1
Ghent University Academic Bibliography
1
University of St Andrews: Digital Research Repository
1
Université de Lausanne (UNIL): Serval - Serveur académique lausannois
1