Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
9
PANGAEA - Data Publisher for Earth & Environmental Science
9
Borealis
5
Copernicus Publications: E-Journals
5
Unknown
4
Directory of Open Access Journals: DOAJ Articles
3
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
3
Niedersächsisches Online-Archiv NOA
3
Northumbria University, Newcastle: Northumbria Research Link (NRL)
2
Canadian Science Publishing
1
German Aerospace Center: elib - DLR electronic library
1
Theses Canada/Thèses Canada (Library and Archives Canada)
1
University of Guelph: DSpace digital archive
1
Wilfrid Laurier University, Ontario: Scholars Commons@Laurier
1