Content Provider
Unknown
42
Directory of Open Access Journals: DOAJ Articles
41
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
22
Wiley Online Library
21
Copernicus Publications: E-Journals
19
Institut national des sciences de l'Univers: HAL-INSU
19
Cambridge University Press
18
Opin vísindi (Iceland)
18
DataCite Metadata Store (German National Library of Science and Technology)
17
Skemman (Iceland)
15
Université de Nantes: HAL-UNIV-NANTES
14
Niedersächsisches Online-Archiv NOA
13
WikiBooks - Open-content textbooks
11
Lund University Publications (LUP)
9
University of Copenhagen: Research
9
PANGAEA - Data Publisher for Earth & Environmental Science
7
ScienceDirect (Elsevier - via Crossref)
7
Université Grenoble Alpes: HAL
7
MDPI Open Access Publishing
6
PubMed Central (PMC)
6
Université Savoie Mont Blanc: HAL
6
Apollo - University of Cambridge Repository
5
German Aerospace Center: elib - DLR electronic library
5
HAL Univ-Eiffel (Université Gustave Eiffel)
5
Springer Nature (via Crossref)
5
Utrecht University Repository
5
Discovery - University of Dundee Online Publications
4
Informa
4
Météo-France: HAL
4
Technical University of Denmark: DTU Orbit
4
Université Toulouse III - Paul Sabatier: HAL-UPS
4
Université de Bretagne Occidentale: HAL
4
White Rose Research Online (Universities of Leeds, Sheffield & York)
4
Edinburgh Research Archive (ERA - University of Edinburgh)
3
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
3
HighWire Press (Stanford University)
3
IRD (Institute de recherche pour le développement): Horizon
3
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
3
Natural Environment Research Council: NERC Open Research Archive
3
Staffordshire University: STORE - Staffordshire Online Repository
3
The University of Arizona: UA Campus Repository
3
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
3
University of Cambridge, Department of Earth Sciences: ESC Publications
3
Université de Rennes 1: Publications scientifiques (HAL)
3
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
3
Zenodo
3
ARPI - Archivio della Ricerca dell'Università di Pisa
2
Aarhus University: OJS at The State and University Library
2
DSpace@MIT (Massachusetts Institute of Technology)
2
Delft University of Technology: Institutional Repository
2
more ...