Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
124
Directory of Open Access Journals: DOAJ Articles
113
Copernicus Publications: E-Journals
82
Niedersächsisches Online-Archiv NOA
49
Unknown
41
LeibnizOpen (The Leibniz Association)
37
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
36
National Institute of Polar Research Repository, Japan
27
MDPI Open Access Publishing
24
Université de Nantes: HAL-UNIV-NANTES
21
Norwegian Polar Data Centre
20
NTNU Open Archive (Norwegian University of Science and Technology)
18
NILU – Norwegian Institute for Air Research: NILU Brage
17
Polar Research (E-Journal)
16
Institut national des sciences de l'Univers: HAL-INSU
15
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
15
PANGAEA - Data Publisher for Earth & Environmental Science
14
PubMed Central (PMC)
14
Springer Nature (via Crossref)
13
University of Tromsø: Munin Open Research Archive
13
ScienceDirect (Elsevier - via Crossref)
10
Norwegian Institute for Nature Research: Brage NINA
9
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
7
Natural Environment Research Council: NERC Open Research Archive
7
Arctic Portal Library
6
ETH Zürich Research Collection
6
ScienceDirect (Elsevier)
6
Université de Paris: Portail HAL
6
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
5
Université Grenoble Alpes: HAL
5
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
4
Dryad Digital Repository (Duke University)
4
IRIS Università degli Studi di Perugia
4
Stockholm University: Publications (DiVA)
4
Università degli Studi di Genova: CINECA IRIS
4
Wageningen UR (University & Research Centre): Digital Library
4
Cambridge University Press
3
Digital Repository of Scientific Institutes (RCIN)
3
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
3
GEO-LEOe-docs (FID GEO)
3
HAL Lyon 1 (University Claude Bernard Lyon 1)
3
Hereon Publications (Helmholtz-Zentrum)
3
Hindawi Publishing Corporation
3
INSA Lyon HAL (Institut National des Sciences Appliquées)
3
Indian Academy of Sciences: Publication of Fellows
3
Joint Research Centre, European Commission: JRC Publications Repository
3
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
3
Open archive Norwegian University of Life Sciences: Brage NMBU
3
Polar Research
3
Portail HAL - Ecole Centrale de Lyon
3
more ...