Content Provider
Springer Nature (via Crossref)
87
Caltech Authors (California Institute of Technology)
29
Oxford University Press
29
ScienceDirect (Elsevier - via Crossref)
25
ScienceDirect (Elsevier)
6
OpenMETU (Middle East Technical University)
4
Schweizerbart Science Publishers (via Crossref)
4
De Gruyter (via Crossref)
3
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
2
Sciendo (de Gruyter - via CrossRef)
2
Cambridge University Press
1
De Gruyter
1
Oxford University Press (via Crossref)
1
University of Hull: Repository@Hull
1
University of Nottingham: Repository@Nottingham
1
Utrecht University Repository
1