Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
329
LeibnizOpen (The Leibniz Association)
72
DataCite Metadata Store (German National Library of Science and Technology)
55
Unknown
47
Directory of Open Access Journals: DOAJ Articles
40
Jagiellonian University Repository
21
Zenodo
19
The Repository of the University of Silesia (RE-BUŚ)
17
AMUR - Adam Mickiewicz University Repository, Poznan
14
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
11
MDPI Open Access Publishing
10
Université de Nantes: HAL-UNIV-NANTES
9
Nicolaus Copernicus University (UMK) Torun: RUM@K
8
University of Groningen research database
8
Apollo - University of Cambridge Repository
7
HAL Clermont Auvergne (Université Blaise Pascal Clermont-Ferrand/Université d'Auvergne)
7
University of Tromsø: Munin Open Research Archive
7
Université de Limoges: HAL
7
Adam Mickiewicz University in Poznań: PRESSto
6
Digital Repository of Scientific Institutes (RCIN)
6
Norwegian Polar Institute: Brage NP
6
Polar Research
6
University of Tromsø: Septentrio Academic Publishing
6
Ghent University Academic Bibliography
5
Norsk Polarinstitutt: Brage NP
5
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
5
Université de Bretagne Occidentale: HAL
5
Archive Ouverte de l'Université Rennes (HAL)
4
EPHE (Ecole pratique des hautes études, Paris): HAL
4
Frontiers: Figshare
4
IRIS Università degli Studi di Napoli Federico II
4
Magnolia press
4
Normandie Université: HAL
4
Polar Research (E-Journal)
4
University of Bergen: Bergen Open Research Archive (BORA-UiB)
4
University of Calgary Journal Hosting
4
HAL Sorbonne Université
3
Lund University Publications (LUP)
3
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
3
USGS Science Data Catalog (via DataONE)
3
University College London: UCL Discovery
3
University of Copenhagen: Research
3
Arctic and Antarctic Research (E-Journal)
2
Bates College: SCARAB (Scholarly Communication and Research at Bates)
2
Cairn (E-Journals)
2
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
2
Durham University: Durham Research Online
2
Masaryk University Journals
2
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
2
NORA (National aggregator of open repositories of Russian universities)
2
more ...