Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
11
Directory of Open Access Journals: DOAJ Articles
10
Copernicus Publications: E-Journals
9
Unknown
7
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
4
PANGAEA - Data Publisher for Earth & Environmental Science
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
Dryad Digital Repository (Duke University)
3
HELDA – University of Helsinki Open Repository
3
Informa
3
International Arctic Research Center (IARC) Data Archive (via DataONE)
3
DataCite
2
Institut national des sciences de l'Univers: HAL-INSU
2
National Institute of Polar Research Repository, Japan
2
Niedersächsisches Online-Archiv NOA
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
PubMed Central (PMC)
2
Université de Nantes: HAL-UNIV-NANTES
2
Aarhus University: Research
1
Aix-Marseille Université: HAL
1
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Altai State University: Scientific Journals of ASU
1
Archive Ouverte de l'Université Rennes (HAL)
1
Arctic Data Center (via DataONE)
1
Augsburg University Publication Server (OPUS)
1
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
1
Freie Universität Berlin: Refubium (FU Berlin)
1
GEO-LEOe-docs (FID GEO)
1
HAL Université Côte d'Azur
1
HAL-EHESS : Le portail HAL de l'École des hautes études en sciences sociales
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
IIASA DARE (Data Repository of the International Institute of Applied Systems Analysis)
1
IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository)
1
Informa (via Crossref)
1
MDPI Open Access Publishing
1
NILU – Norwegian Institute for Air Research: NILU Brage
1
NORA (National aggregator of open repositories of Russian universities)
1
NTNU Open Archive (Norwegian University of Science and Technology)
1
Natural Resources Institute Finland: Jukuri
1
Polar Research (E-Journal)
1
SMHI (Swedish Meteorological and Hydrological Institute): Vetenskapliga Publikationer (DiVA)
1
Stockholm University: Publications (DiVA)
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
University of Calgary Journal Hosting
1
University of Potsdam: publish.UP
1
Université d'Avignon et des Pays de Vaucluse: HAL
1
Université de Bretagne Occidentale: HAL
1
Université de Rennes 1: Publications scientifiques (HAL)
1
Wiley Online Library
1
ePLUS - Open Access Publikationsserver der Universität Salzburg
1