Content Provider
Springer Nature (via Crossref)
39
University of Copenhagen: Research
38
DataCite Metadata Store (German National Library of Science and Technology)
30
LaCRIS - University of Lapland Current Research System
22
LeibnizOpen (The Leibniz Association)
22
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
20
De Gruyter
15
Aarhus University: Research
11
Böhlau Verlag (via Crossref)
10
Max Planck Society: MPG.PuRe
9
Natural Resources Institute Finland: Jukuri
7
Nomos
7
ePLUS - Open Access Publikationsserver der Universität Salzburg
7
Aalborg University's Research Portal
6
De Gruyter (via Crossref)
6
JSTOR (via Crossref)
6
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
Universität Bamberg FIS
6
Springer Nature
5
University of Southern Denmark Research Portal
5
Danish Defense Research Portal
4
ZFDM Repository (Center for Sustainable Research Data Management, Hamburg University)
4
BORIS (Bern Open Repository and Information System, University of Bern)
3
Lund University Publications (LUP)
3
NTNU Open Archive (Norwegian University of Science and Technology)
3
University of Szeged: SZTE Repository of Publications
3
University of Tromsø: Munin Open Research Archive
3
Unknown
3
transcript Verlag
3
C.H. Beck (via Crossref)
2
Hereon Publications (Helmholtz-Zentrum)
2
King's College, London: Research Portal
2
Nordic museum: Publications (DIVA)
2
Norwegian Institute of international affairs: NUPI Research Online (Brage)
2
Open archive Nord universitet
2
Roskilde University Research Portal (RUC)
2
University of Basel: edoc
2
University of Bergen: Bergen Open Research Archive (BORA-UiB)
2
University of Freiburg: FreiDok
2
University of Groningen research database
2
Åbo Akademi University Research Portal
2
Archives ouvertes de Paris-Saclay
1
Brill
1
DataCite
1
Dokumentenserver der Universität der Künste (UdK) Berlin
1
ETH Zürich Research Collection
1
EconStor (German National Library of Economics, ZBW)
1
Eindhoven University of Technology (TU/e): Research Portal
1
Eindhoven University of Technology research portal
1
GRO.publications (Göttingen Research Online Publications - Göttingen University)
1
more ...