Content Provider
LeibnizOpen (The Leibniz Association)
20
Copernicus Publications: E-Journals
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
Unknown
2
CentAUR: Central Archive at the University of Reading
1
Niedersächsisches Online-Archiv NOA
1
Northumbria University, Newcastle: Northumbria Research Link (NRL)
1
University of Potsdam: publish.UP
1
Utrecht University Repository
1