Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
536
DataCite Metadata Store (German National Library of Science and Technology)
128
Directory of Open Access Journals: DOAJ Articles
117
LeibnizOpen (The Leibniz Association)
110
Unknown
72
Copernicus Publications: E-Journals
67
Aarhus University: Research
59
Wiley Online Library
51
University of Tromsø: Munin Open Research Archive
49
Niedersächsisches Online-Archiv NOA
46
Cambridge University Press
41
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
37
Institute for Marine Research: Brage IMR
31
PubMed Central (PMC)
28
Technical University of Denmark: DTU Orbit
25
Zenodo
25
Polar Research (E-Journal)
23
Université de Nantes: HAL-UNIV-NANTES
23
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
22
University of Copenhagen: Research
22
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
19
Institut national des sciences de l'Univers: HAL-INSU
18
Lund University Publications (LUP)
16
University of Calgary Journal Hosting
15
Defense Technical Information Center: DTIC Technical Reports database
14
Digital.CSIC (Spanish National Research Council)
13
MDPI Open Access Publishing
13
HighWire Press (Stanford University)
12
NTNU Open Archive (Norwegian University of Science and Technology)
12
ScienceDirect (Elsevier - via Crossref)
12
Springer Nature (via Crossref)
12
University of Bergen: Bergen Open Research Archive (BORA-UiB)
12
National Institute of Polar Research Repository, Japan
11
University of Groningen research database
11
University of Tromsø: Septentrio Academic Publishing
11
Wiley Online Library (via Crossref)
11
The Royal Society
10
Natural Environment Research Council: NERC Open Research Archive
9
Instituto Español de Oceanografía: e-IEO
8
Norsk Polarinstitutt: Brage NP
8
Apollo - University of Cambridge Repository
7
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
7
Norwegian Polar Institute: Brage NP
7
Uppsala University: Publications (DiVA)
7
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
6
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
6
The Czech Academy of Sciences: Publication Activity (ASEP)
6
University of Southampton: e-Prints Soton
6
University of St Andrews: Research Portal
6
norden (Nordic Council of Ministers): Publications (DiVA)
6
more ...