Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
15,868
DataCite Metadata Store (German National Library of Science and Technology)
11,317
DataCite
4,924
NOAA NCEI Environmental Data Archive (via DataONE)
856
Directory of Open Access Journals: DOAJ Articles
682
Unknown
507
Informa (via Crossref)
290
Defense Technical Information Center: DTIC Technical Reports database
251
LeibnizOpen (The Leibniz Association)
211
The University of Winnipeg: WinnSpace Repository
171
Cambridge University Press
164
Cambridge University Press (via Crossref)
162
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
132
Uppsala University: Publications (DiVA)
126
Dryad Digital Repository (Duke University)
122
Umeå University: Publications (DiVA)
121
Oxford University Press (via Crossref)
116
Washington State University: WSU Libraries Digital Collections
104
Université de Nantes: HAL-UNIV-NANTES
101
Brill (via Crossref)
99
Swedish National Data Service (SND)
99
da|ra - Registration agency for social and economic data
99
Lund University Publications (LUP)
93
Stockholm University: Publications (DiVA)
83
University of California: eScholarship
81
Research Data Australia (Australian National Data Service - ANDS)
73
Université Laval: CorpusUL
73
ArXiv.org (Cornell University Library)
70
CyberLeninka (Scientific Electronic Library)
70
SSOAR - Social Science Open Access Repository
69
Hirsla - Landspítali University Hospital research archive
67
SAGE Publications (via Crossref)
66
Frontiers: Figshare
62
Swedish Museum of Natural History: Publications (DiVA)
62
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
61
Chalmers University of Technology: Chalmers research
60
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
58
Zenodo
55
Arctic Data Center (via DataONE)
54
OpenEdition
54
eCite UTAS (University of Tasmania)
52
MDPI Open Access Publishing
46
The University of Queensland: UQ eSpace
43
JSTOR (via Crossref)
42
University of Nebraska-Lincoln: DigitalCommons@UNL
41
Theses Canada/Thèses Canada (Library and Archives Canada)
39
National Archive of PhD Theses (National Documentation Centre Greece)
38
Informa
37
Institut national des sciences de l'Univers: HAL-INSU
37
University of Calgary Journal Hosting
33
more ...