Content Provider
Rijksuniversiteit Groningen: University of Groningen Press
20
University of Groningen research database
12
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
Directory of Open Access Journals: DOAJ Articles
3
Utrecht University Repository
2
Bulletin KNOB (Koninklijke Nederlandse Oudheidkundige Bond)
1
KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences)
1
Unknown
1
Wageningen UR (University & Research Centre): Digital Library
1