Content Provider
WikiBooks - Open-content textbooks
130
norden (Nordic Council of Ministers): Publications (DiVA)
48
Technical University of Denmark: DTU Orbit
22
Biodiversity Heritage Library (BHL)
20
Aarhus University: Research
12
Unknown
9
University of Copenhagen: Research
8
Aalborg University's Research Portal
6
Roskilde University Research Portal (RUC)
6
University of Southampton: e-Prints Soton
4
Cambridge University Press
3
OECD iLibrary (via Crossref)
3
Open Research Library
3
University of Southern Denmark Research Portal
3
David Rumsey Historical Map Collection (Cartography Associates)
2
Kiel University Library: Digital Collections
2
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
2
Springer Nature
2
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
2
University of the Highlands and Islands: Research Database of UHI
2
Architecture, Design and Conservation - Danish Portal for Artistic and Scientific Research: Research Outputs
1
Arctic Portal Library
1
Brill
1
Cardiff University: ORCA (Online Research @ Cardiff)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
De Gruyter (via Crossref)
1
EconStor (German National Library of Economics, ZBW)
1
Falmouth University Research Repository (FURR)
1
GEO-LEOe-docs (FID GEO)
1
KITopen (Karlsruhe Institute of Technologie)
1
Lund University Publications (LUP)
1
Marine Institute Open Access Repository
1
OECD iLibrary
1
Oxford University Press
1
Repositório Institucional da Unisul (RIUNI - Universidade do Sul de Santa Catarina)
1
Repositório Universitário da Ânima (RUNA)
1
SSOAR - Social Science Open Access Repository
1
Share it - Open Access und Forschungsdaten-Repositorium der Hochschulbibliotheken in Sachsen-Anhalt
1
University College London: UCL Discovery
1
University Press of Florida
1
University of Cambridge, Department of Earth Sciences: ESC Publications
1
White Rose Research Online (Universities of Leeds, Sheffield & York)
1
Zenodo
1
Åbo Akademi University Research Portal
1