Content Provider
United Nations Publications (via Crossref)
87
Springer Nature
62
Springer Nature (via Crossref)
58
University of Tromsø: Munin Open Research Archive
45
Oxford University Press (via Crossref)
33
Informa (via Crossref)
23
University of Bergen: Bergen Open Research Archive (BORA-UiB)
23
LaCRIS - University of Lapland Current Research System
19
Oxford University Press
19
UNESDOC - UNESCO Digital Library
18
Informa
17
NTNU Open Archive (Norwegian University of Science and Technology)
15
ScienceDirect (Elsevier)
13
University of Copenhagen: Research
13
Lund University Publications (LUP)
12
Cambridge University Press
11
OpenEdition
10
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
10
SINTEF Open (Brage)
9
De Gruyter (via Crossref)
8
Digital.CSIC (Spanish National Research Council)
7
Aarhus University: Research
6
Cornell University: eCommons@Cornell
6
Edinburgh University Press (via Crossref)
6
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive
6
Technical University of Denmark: DTU Orbit
6
Brill (via Crossref)
5
Edward Elgar Publishing
5
JSTOR
5
JSTOR (via Crossref)
5
Natural Environment Research Council: NERC Open Research Archive
5
The Open University: Open Research Online (ORO)
5
University College London: UCL Discovery
5
University of the Highlands and Islands: Research Database of UHI
5
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Cornell University Press
4
Edinburgh University Press
4
IRIS Università degli Studi di Napoli Federico II
4
Institute for Marine Research: Brage IMR
4
ScienceDirect (Elsevier - via Crossref)
4
Umeå University: Publications (DiVA)
4
University of Malta: OAR@UM
4
University of Southampton: e-Prints Soton
4
norden (Nordic Council of Ministers): Publications (DiVA)
4
DataCite Metadata Store (German National Library of Science and Technology)
3
De Gruyter
3
LIU - Linköping University: Publications (DiVA)
3
Open Book Publishers
3
Repozytorium Uniwersytetu w Białymstoku (RUB)
3
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