Content Provider
ScienceDirect (Elsevier - via Crossref)
37
ScienceDirect (Elsevier)
24
Oxford University Press (via Crossref)
3
Springer Nature (via Crossref)
3
Aberdeen University Research Archive (AURA)
1
Bangor University: Research Portal
1
Caltech Authors (California Institute of Technology)
1
University of Liège: ORBi (Open Repository and Bibliography)
1
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
1
Wiley Online Library (via Crossref)
1