Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
58,691
University of Tromsø: Munin Open Research Archive
1,881
Directory of Open Access Journals: DOAJ Articles
572
DataCite
359
PubMed Central (PMC)
296
Unknown
252
PANGAEA - Data Publisher for Earth & Environmental Science
218
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
188
Springer Nature (via Crossref)
160
Wiley Online Library
147
Zenodo
144
Arctic Council Repository
139
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
138
NTNU Open Archive (Norwegian University of Science and Technology)
108
University of Tromsø: Septentrio Academic Publishing
91
Copernicus Publications: E-Journals
90
LeibnizOpen (The Leibniz Association)
85
Niedersächsisches Online-Archiv NOA
84
NGU Open Archive (Geological Survey of Norway)
75
Ovid
75
HighWire Press (Stanford University)
74
Institute for Marine Research: Brage IMR
74
Institut national des sciences de l'Univers: HAL-INSU
73
ScienceDirect (Elsevier - via Crossref)
73
University of Bergen: Bergen Open Research Archive (BORA-UiB)
67
Australian Catholic University: ACU Research Bank
63
Oxford University Press
60
OsloMet (Oslo Metropolitan University): ODA (Open Digital Archive)
55
ScienceDirect (Elsevier)
54
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
53
Norwegian Institute of Public Health Open Repository (Brage)
52
The BMJ
51
Université de Nantes: HAL-UNIV-NANTES
50
BioMed Central
49
Dove Medical Press
42
University of Alberta: Era - Education and Research Archive
42
Wiley Online Library (via Crossref)
42
Frontiers: Figshare
38
Cambridge University Press
36
Aarhus University: OJS at The State and University Library
35
Norwegian Institute for Nature Research: Brage NINA
35
SAGE Publications
35
Tidsskrift.dk (The Royal Library, Denmark)
35
Max Planck Society: MPG.PuRe
34
University of Leicester: Leicester Research Archive (LRA)
34
University of Leicester: Figshare
33
Scandinavian University Press (via Crossref)
31
Biodiversity Heritage Library (BHL)
30
OpenEdition
30
Thieme
30
more ...