Publisher
Wiley
31
MDPI AG
19
Elsevier
14
Frontiers Media S.A.
Hindawi
7
Springer
7
Taylor & Francis
5
Cambridge University Press
4
IOP Publishing
4
Wiley-Hindawi
3
Copernicus Publications
2
Nature Portfolio
2
Open Library of Humanities
2
SAGE Publications
2
American Institute of Physics (AIP)
1
BioMed Central
1
Royal Society of Chemistry
1
Springer Nature