Content Provider
Cambridge University Press
1,835
ScienceDirect (Elsevier - via Crossref)
1,204
eCite UTAS (University of Tasmania)
487
ScienceDirect (Elsevier)
466
Directory of Open Access Journals: DOAJ Articles
367
Frontiers: Figshare
344
Frontiers (Publisher)
227
DataCite Metadata Store (German National Library of Science and Technology)
214
Springer Nature (via Crossref)
209
Unknown
147
University of California: eScholarship
143
Wiley Online Library
143
Wiley Online Library (via Crossref)
110
Old Dominion University: ODU Digital Commons
88
Biodiversity Heritage Library (BHL)
60
W&M ScholarWorks
54
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
50
NASA Technical Reports Server (NTRS)
40
Stockholm University Press (via Crossref)
40
Oxford University Press
38
Informa (via Crossref)
35
Oxford University Press (via Crossref)
34
Columbia University: Academic Commons
32
KovsieScholar Repository (University of the Free State - UFS UV)
27
University of California Press
24
Australian National University: ANU Digital Collections
21
Research Data Australia (Australian National Data Service - ANDS)
21
University of the Highlands and Islands: Research Database of UHI
20
Brill (via Crossref)
19
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
18
The Royal Society: Figshare
18
The University of Queensland: UQ eSpace
18
Utrecht University Repository
18
DRO - Deakin Research Online
17
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
16
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
16
University of Cape Town: OpenUCT
16
DIAL@USL-B (Université Saint-Louis, Bruxelles)
13
Hathi Trust Digital Library
12
Purdue University: e-Pubs
11
Texas A&M University Digital Repository
11
DIAL@UCLouvain (Université catholique de Louvain)
10
Stockholm University: Publications (DiVA)
10
The University of Maine: DigitalCommons@UMaine
10
University of California Press (via Crossref)
10
Cambridge University Press (via Crossref)
9
Stockholm University Press
9
Florida State University: DigiNole Commons
7
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
7
Informa
7
more ...