Content Provider
Directory of Open Access Journals: DOAJ Articles
139
Cambridge University Press
79
Oxford University Press
30
Wiley Online Library
29
ScienceDirect (Elsevier - via Crossref)
28
Springer Nature (via Crossref)
25
LeibnizOpen (The Leibniz Association)
20
ASM Journals (American Society for Microbiology)
19
University of California Press
17
DataCite Metadata Store (German National Library of Science and Technology)
13
University of California Press (via Crossref)
13
Oxford University Press (via Crossref)
10
SAGE Publications (via Crossref)
9
Informa (via Crossref)
8
University of Liège: ORBi (Open Repository and Bibliography)
5
Lund University Publications (LUP)
4
SAGE Publications
4
Unknown
4
eCite UTAS (University of Tasmania)
4
ASM Journals (American Society for Microbiology - via Crossref)
3
LIU - Linköping University: Publications (DiVA)
3
University of Calgary Journal Hosting
3
Columbia University: Academic Commons
2
De Gruyter (via Crossref)
2
Ghent University Academic Bibliography
2
Technical University of Denmark: DTU Orbit
2
University of North Texas: UNT Digital Library
2
Wiley Online Library (via Crossref)
2
Bangor University: Research Portal
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
DIAL@UCLouvain (Université catholique de Louvain)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
HELDA – University of Helsinki Open Repository
1
Harvard University: DASH - Digital Access to Scholarship at Harvard
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
JSTOR (via Crossref)
1
Koç University Suna Kıraç Library’ Digital Collections
1
Norwegian Institute for Nature Research: Brage NINA
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
Sciendo (de Gruyter - via CrossRef)
1
Stockholm University: Publications (DiVA)
1
Umeå University: Publications (DiVA)
1
Universidad de Chile: Repositorio académico
1
University College London: UCL Discovery
1
University of California: eScholarship
1
University of St Andrews: Digital Research Repository
1
University of the Highlands and Islands: Research Database of UHI
1
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
1
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
1