Content Provider
ScienceDirect (Elsevier - via Crossref)
127
Springer Nature (via Crossref)
93
ScienceDirect (Elsevier)
30
De Gruyter (via Crossref)
6
Informa (via Crossref)
4
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
2
Utrecht University Repository
2
Aalto University Publication Archive (Aaltodoc)
1
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
1
Queen's University Belfast Research Portal
1
Wiley Online Library (via Crossref)
1