Content Provider
Biodiversity Heritage Library (BHL)
40
DataCite Metadata Store (German National Library of Science and Technology)
3
Apollo - University of Cambridge Repository
2
Directory of Open Access Journals: DOAJ Articles
2
University of Calgary Journal Hosting
2
University of California: eScholarship
2
LIU - Linköping University: Publications (DiVA)
1
PRISM - University of Calgary Digital Repository
1
Swedish Museum of Natural History: Publications (DiVA)
1
University of Liège: ORBi (Open Repository and Bibliography)
1