Content Provider
Aarhus University: OJS at The State and University Library
19
Tidsskrift.dk (The Royal Library, Denmark)
19
Technical University of Denmark: DTU Orbit
6
University of Michigan: Digital Collections
3
York University Digital Library
3
University of Copenhagen: Research
2
Aarhus University: Research
1
DataCite Metadata Store (German National Library of Science and Technology)
1
EconStor (German National Library of Economics, ZBW)
1
Hungarian Electronic Library (MEK)
1
Project Gutenberg (PG)
1
Unknown
1