Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
22
University of Calgary Journal Hosting
19
Unknown
12
Canadian Science Publishing
7
Directory of Open Access Journals: DOAJ Articles
7
Wiley Online Library
6
Cambridge University Press
3
Cambridge University Press (via Crossref)
3
Oxford University Press
3
University of Alaska: ScholarWorks@UA
3
Magnolia press
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
ScienceDirect (Elsevier - via Crossref)
2
Uppsala University: Publications (DiVA)
2
Érudit.org (Université Montréal)
2
Alces (A Journal Devoted to the Biology and Management of Moose)
1
BioMed Central
1
Cologne University: KUPS
1
DSpace@MIT (Massachusetts Institute of Technology)
1
DataCite
1
Defense Technical Information Center: DTIC Technical Reports database
1
HighWire Press (Stanford University)
1
Informa
1
MDPI Open Access Publishing
1
Max Planck Society: MPG.PuRe
1
ORA - Oxford University Research Archive
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
OpenEdition
1
PRISM - University of Calgary Digital Repository
1
PubMed Central (PMC)
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
University of British Columbia: cIRcle - UBC's Information Repository
1
University of Chicago Press (via Crossref)
1
University of Michigan: Deep Blue
1
University of Southampton: e-Prints Soton
1
University of Wisconsin: Digital Collections
1
Washington State University: WSU Libraries Digital Collections
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1