Content Provider
Directory of Open Access Journals: DOAJ Articles
81
University of Tromsø: Munin Open Research Archive
68
DataCite Metadata Store (German National Library of Science and Technology)
40
Polar Research (E-Journal)
35
Unknown
32
ScienceDirect (Elsevier - via Crossref)
21
Institute for Marine Research: Brage IMR
20
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
19
Aarhus University: Research
17
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
17
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
17
Wiley Online Library (via Crossref)
17
University of Tromsø: Septentrio Academic Publishing
15
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
14
Natural Environment Research Council: NERC Open Research Archive
14
Niedersächsisches Online-Archiv NOA
13
University of Bergen: Bergen Open Research Archive (BORA-UiB)
13
University of Calgary Journal Hosting
11
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
10
Springer Nature (via Crossref)
10
Cambridge University Press
9
Digital.CSIC (Spanish National Research Council)
8
Institut national des sciences de l'Univers: HAL-INSU
8
Wiley Online Library
8
University of the Highlands and Islands: Research Database of UHI
7
University of Copenhagen: Research
6
Université de Nantes: HAL-UNIV-NANTES
6
White Rose Research Online (Universities of Leeds, Sheffield & York)
6
Durham University: Durham Research Online
5
Lund University Publications (LUP)
5
NTNU Open Archive (Norwegian University of Science and Technology)
5
Portail HAL-ANR (Agence Nationale de la Recherche)
5
University of St Andrews: Research Portal
5
Université de Bretagne Occidentale: HAL
5
ARPI - Archivio della Ricerca dell'Università di Pisa
4
Apollo - University of Cambridge Repository
4
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
4
Ghent University Academic Bibliography
4
ScienceDirect (Elsevier)
4
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
4
AMUR - Adam Mickiewicz University Repository, Poznan
3
Fridtjof Nansen Institute: FNI Open archive (Brage)
3
Frontiers (Publisher)
3
Max Planck Society: MPG.PuRe
3
NORA (National aggregator of open repositories of Russian universities)
3
OpenAgrar (OA)
3
University of California: eScholarship
3
University of Southampton: e-Prints Soton
3
Université de Rennes 1: Publications scientifiques (HAL)
3
Zenodo
3
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