Content Provider
Directory of Open Access Journals: DOAJ Articles
160
LeibnizOpen (The Leibniz Association)
62
Unknown
52
DataCite Metadata Store (German National Library of Science and Technology)
36
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
32
Wiley Online Library
30
Niedersächsisches Online-Archiv NOA
23
RePEc (Research Papers in Economics)
22
University of California: eScholarship
22
Université de Nantes: HAL-UNIV-NANTES
20
Aarhus University: Research
15
IOP Publishing
14
Institut national des sciences de l'Univers: HAL-INSU
14
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
13
University of Tromsø: Munin Open Research Archive
13
Springer Nature (via Crossref)
12
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
10
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
10
HELDA – University of Helsinki Open Repository
9
Lund University Publications (LUP)
9
University of Copenhagen: Research
9
CentAUR: Central Archive at the University of Reading
8
Frontiers (Publisher)
7
The Royal Society
7
University of Calgary Journal Hosting
7
University of Southampton: e-Prints Soton
7
Wageningen UR (University & Research Centre): Digital Library
7
ETH Zürich Research Collection
6
HAL Sorbonne Université
6
NTNU Open Archive (Norwegian University of Science and Technology)
6
Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences)
6
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
Umeå University: Publications (DiVA)
6
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
6
Vrije Universiteit Amsterdam (VU): Research Portal
6
Zenodo
6
Archives ouvertes de Paris-Saclay
5
Arctic Portal Library
5
DergiPark Akademik (E-Journals)
5
Dialnet - Portada de revistas (Universidad de La Rioja)
5
Dryad Digital Repository (Duke University)
5
Hereon Publications (Helmholtz-Zentrum)
5
IOP Publishing (via Crossref)
5
Institute for Marine Research: Brage IMR
5
Norwegian Institute for Nature Research: Brage NINA
5
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
5
Portail HAL Institut Agro
5
Qatar University: QU Institutional Repository
5
University of Bristol: Bristol Research
5
University of Western Sydney (UWS): Research Direct
5
more ...