Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,550
University of Copenhagen: Research
668
Aarhus University: OJS at The State and University Library
364
Tidsskrift.dk (The Royal Library, Denmark)
364
Aarhus University: Research
307
Norsk Polarinstitutt: Brage NP
165
Fiskeridirektoratet (Brage FISK)
158
University of Southern Denmark Research Portal
132
Norwegian Polar Institute: Brage NP
119
Aalborg University's Research Portal
117
LeibnizOpen (The Leibniz Association)
100
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
97
norden (Nordic Council of Ministers): Publications (DiVA)
96
Bavarian Digital Repository (BDR - Bayerische Staatsbibliothek Munich, BSB)
86
Roskilde University Research Portal (RUC)
86
Biodiversity Heritage Library (BHL)
81
Technical University of Denmark: DTU Orbit
73
University of Michigan: Digital Collections
69
WikiBooks - Open-content textbooks
59
Unknown
57
Zenodo
55
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
42
Informa (via Crossref)
38
JSTOR (via Crossref)
38
e-periodica (Swiss journals online, ETH Zurich)
37
Directory of Open Access Journals: DOAJ Articles
35
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
31
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
30
Cambridge University Press
29
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
25
University of Freiburg: FreiDok
25
Hathi Trust Digital Library
24
e-rara.ch (ETH Zürich)
24
Lund University Publications Student Papers (LUP-SP)
23
Springer Nature (via Crossref)
23
Danish Defense Research Portal
21
David Rumsey Historical Map Collection (Cartography Associates)
21
Wiley Online Library
21
ETH Zürich Research Collection
20
University of Tromsø: Munin Open Research Archive
20
Uppsala University: Publications (DiVA)
19
Institute for Marine Research: Brage IMR
16
De Gruyter (via Crossref)
15
EconStor (German National Library of Economics, ZBW)
15
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
15
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
15
NTNU Open Archive (Norwegian University of Science and Technology)
13
Open archive Norwegian University of Life Sciences: Brage NMBU
13
OsloMet (Oslo Metropolitan University): ODA (Open Digital Archive)
13
PANGAEA - Data Publisher for Earth & Environmental Science
12
more ...