Content Provider
Wiley Online Library (via Crossref)
107
Canadian Science Publishing (via Crossref)
93
Wiley Online Library
58
Canadian Science Publishing
47
Springer Nature (via Crossref)
19
ScienceDirect (Elsevier - via Crossref)
9
Oxford University Press
7
Informa (via Crossref)
5
Oxford University Press (via Crossref)
3
De Gruyter (via Crossref)
1
Informa
1
ScienceDirect (Elsevier)
1