Content Provider
University of Calgary Journal Hosting
34
LeibnizOpen (The Leibniz Association)
14
DataCite Metadata Store (German National Library of Science and Technology)
13
USGS Science Data Catalog (via DataONE)
12
Biodiversity Heritage Library (BHL)
8
PANGAEA - Data Publisher for Earth & Environmental Science
8
Carleton University's Institutional Repository
7
Unknown
5
Directory of Open Access Journals: DOAJ Articles
3
GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
3
University of Toronto: Research Repository T-Space
3
University of Victoria (Canada): UVicDSpace
3
York University, Toronto: YorkSpace
3
MDPI Open Access Publishing
2
Theses Canada/Thèses Canada (Library and Archives Canada)
2
University of Alberta: Era - Education and Research Archive
2
uO Research (University of Ottawa - uOttawa)
2
Carolina Digital Repository (UNC - University of North Carolina)
1
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR
1
MSpace at the University of Manitoba
1
National Research Council Canada: NRC Publications Archive
1
PRISM - University of Calgary Digital Repository
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
TU Berlin: Deposit Once
1
University of Guelph: DSpace digital archive
1
University of Maryland: Digital Repository (DRUM)
1
University of Saskatchewan: eCommons@USASK
1
Western Washington University: CEDAR (Contributing to Education through Digital Access to Research)
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1
Zenodo
1