Content Provider
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Rijksuniversiteit Groningen: University of Groningen Press
89
Royal Netherlands Academy of Arts and Sciences Research Portal (KNAW)
3
The College of Physicians of Philadelphia Digital Library
1
The Library of Congress: American Memory
1
The Portal to Texas History (University of North Texas)
4
The University of Queensland: UQ eSpace
1
Tilburg University: Research portal
2
ULB Düsseldorf: Digitale Sammlungen (University Library of Düsseldorf University)
2
Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)
1
University of Florida: Digital Library Center
1
University of Groningen research database
212
University of Liège: ORBi (Open Repository and Bibliography)
1
University of Miami: Digital Collections
1
University of Michigan: Digital Collections
9
University of Pretoria: UPSpace
1
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
1
Unknown
122
Utrecht University Repository
18
Vrije Universiteit Amsterdam (VU): Research Portal
15
Vrije Universiteit Brussel (VUB): Research Output
7
Wageningen UR (University & Research Centre): Digital Library
241
Wageningen University & Research Publication System
3
WikiBooks - Open-content textbooks
174
Zenodo
3
e-manuscripta.ch
2
e-rara.ch (ETH Zürich)
3