Content Provider
Canadian Science Publishing (via Crossref)
229
Oxford University Press (via Crossref)
144
Canadian Science Publishing
139
Oxford University Press
125
Springer Nature (via Crossref)
56
Wiley Online Library (via Crossref)
43
Wiley Online Library
24
ScienceDirect (Elsevier - via Crossref)
19
ScienceDirect (Elsevier)
10
Informa (via Crossref)
8
Informa
3