Content Provider
Directory of Open Access Journals: DOAJ Articles
107
LeibnizOpen (The Leibniz Association)
81
DataCite Metadata Store (German National Library of Science and Technology)
60
Journals at the University of Arizona
24
Unknown
23
Wiley Online Library (via Crossref)
16
National Research Council Canada: NRC Publications Archive
14
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
13
Peoples' Friendship University of Russia (RUDN): Open repository
11
Institut national des sciences de l'Univers: HAL-INSU
9
University of California: eScholarship
9
Université de Nantes: HAL-UNIV-NANTES
9
Australian National University: ANU Digital Collections
8
Caltech Authors (California Institute of Technology)
8
ScienceDirect (Elsevier - via Crossref)
8
University of North Texas: UNT Digital Library
8
University of Calgary Journal Hosting
7
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
6
Archives ouvertes de Paris-Saclay
6
Normandie Université: HAL
6
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
6
SAGE Publications (via Crossref)
5
Springer Nature (via Crossref)
5
University of Groningen research database
5
Wiley Online Library
5
Cambridge University Press
4
HAL Sorbonne Université
4
Hirsla - Landspítali University Hospital research archive
4
Ice and Snow (E-Journal)
4
OpenEdition
4
Portail HAL-ANR (Agence Nationale de la Recherche)
4
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
4
Technical University of Denmark: DTU Orbit
4
Altai State University: Scientific Journals of ASU
3
Canadian Science Publishing
3
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
3
Irstea Publications et Bases documentaires (Irstea@doc/CemOA)
3
Naval Postgraduate School: Calhoun
3
Research Institute Nature and Forest: Research outputs
3
Russian Journal of Infection and Immunity (Infektsiya i immunitet)
3
University of Texas Arlington: UTA ResearchCommons
3
Universitá degli Studi di Roma "Tor Vergata": ART - Archivio Istituzionale della Ricerca
3
Aarhus University: Research
2
Aix-Marseille Université: HAL
2
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
2
Canadian Science Publishing (via Crossref)
2
ETH Zürich Research Collection
2
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)
2
Imperial College London: Spiral
2
Institutional Repository of Leibniz Universität Hannover
2
more ...