Content Provider
Cambridge University Press
491
Directory of Open Access Journals: DOAJ Articles
480
ScienceDirect (Elsevier - via Crossref)
76
eCite UTAS (University of Tasmania)
41
Defense Technical Information Center: DTIC Technical Reports database
25
Lund University Publications (LUP)
19
Wiley Online Library (via Crossref)
19
ScienceDirect (Elsevier)
17
Wiley Online Library
11
Springer Nature (via Crossref)
10
Rice University: Digital Scholarship Archive
9
Columbia University: Academic Commons
8
Informa (via Crossref)
8
University of Chicago Press (via Crossref)
6
Imperial College London: Spiral
5
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
5
University of California: eScholarship
5
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
4
DataCite Metadata Store (German National Library of Science and Technology)
3
DIAL@USL-B (Université Saint-Louis, Bruxelles)
2
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
2
LeibnizOpen (The Leibniz Association)
2
Northern Illinois University (NIU): Huskie Commons Repository
2
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED)
2
Swedish Museum of Natural History: Publications (DiVA)
2
The University of Waikato: Research Commons
2
UNESDOC - UNESCO Digital Library
2
University College London: UCL Discovery
2
University of California Press (via Crossref)
2
University of Tasmania: UTas ePrints
2
University of Washington, Seattle: ResearchWorks
2
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
2
Università degli Studi di Siena: USiena air
2
Unknown
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Archivio della ricerca dell'Università di Parma (CINECA IRIS)
1
Australian Nuclear Science and Technology Organisation: ANSTO Publications Online
1
Boston University: OpenBU
1
Cambridge University Press (via Crossref)
1
Carolina Digital Repository (UNC - University of North Carolina)
1
City University of New York: CUNY Academic Works
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
DIAL@UCLouvain (Université catholique de Louvain)
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
Florida State University Digital Library (FSUDL)
1
Florida State University: DigiNole Commons
1
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
1
Hathi Trust Digital Library
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
OhioLINK: Electronic Theses and Dissertations Center
1
more ...