Content Provider
Canadian Science Publishing (via Crossref)
233
Cambridge University Press (via Crossref)
96
Canadian Science Publishing
42
Wiley Online Library (via Crossref)
40
Oxford University Press (via Crossref)
39
Springer Nature (via Crossref)
27
ScienceDirect (Elsevier - via Crossref)
24
ScienceDirect (Elsevier)
14
Wiley Online Library
14
Oxford University Press
13
Cambridge University Press
9
Informa (via Crossref)
7
University of Chicago Press (via Crossref)
7
JSTOR (via Crossref)
5
Informa
3
DataCite
2
Scandinavian University Press
1