Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
15,489
DataCite Metadata Store (German National Library of Science and Technology)
13,867
NOAA NCEI Environmental Data Archive (via DataONE)
856
Directory of Open Access Journals: DOAJ Articles
619
Unknown
512
Informa (via Crossref)
377
SAGE Publications (via Crossref)
254
Defense Technical Information Center: DTIC Technical Reports database
251
LeibnizOpen (The Leibniz Association)
201
Cambridge University Press
199
Cambridge University Press (via Crossref)
181
The University of Winnipeg: WinnSpace Repository
171
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
132
Uppsala University: Publications (DiVA)
124
Dryad Digital Repository (Duke University)
122
Oxford University Press (via Crossref)
118
Umeå University: Publications (DiVA)
116
Brill (via Crossref)
114
Washington State University: WSU Libraries Digital Collections
104
Université de Nantes: HAL-UNIV-NANTES
101
da|ra - Registration agency for social and economic data
98
Swedish National Data Service (SND)
90
Lund University Publications (LUP)
88
Informa
87
Stockholm University: Publications (DiVA)
83
University of California: eScholarship
80
Research Data Australia (Australian National Data Service - ANDS)
73
Université Laval: CorpusUL
72
ArXiv.org (Cornell University Library)
70
CyberLeninka (Scientific Electronic Library)
70
SSOAR - Social Science Open Access Repository
68
Hirsla - Landspítali University Hospital research archive
67
Swedish Museum of Natural History: Publications (DiVA)
62
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
61
Chalmers University of Technology: Chalmers research
59
Frontiers: Figshare
57
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
56
Arctic Data Center (via DataONE)
54
OpenEdition
54
eCite UTAS (University of Tasmania)
52
MDPI Open Access Publishing
46
Wiley Online Library (via Crossref)
46
JSTOR (via Crossref)
44
The University of Queensland: UQ eSpace
43
Zenodo
42
SAGE Publications
40
University of Nebraska-Lincoln: DigitalCommons@UNL
40
Theses Canada/Thèses Canada (Library and Archives Canada)
39
National Archive of PhD Theses (National Documentation Centre Greece)
38
Institut national des sciences de l'Univers: HAL-INSU
35
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