Content Provider
Directory of Open Access Journals: DOAJ Articles
3
Aarhus University: Research
2
DataCite Metadata Store (German National Library of Science and Technology)
2
The Canadian Field-Naturalist (E-Journal)
2
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Cambridge University Press (via Crossref)
1
Canadian Science Publishing (via Crossref)
1
Liverpool John Moores University: LJMU Research Online
1
RePEc (Research Papers in Economics)
1
University of Toronto: Research Repository T-Space
1
Unknown
1
Wiley Online Library
1