Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
423
NOAA NCEI Environmental Data Archive (via DataONE)
341
The University of Winnipeg: WinnSpace Repository
171
PANGAEA - Data Publisher for Earth & Environmental Science
48
Unknown
40
Defense Technical Information Center: DTIC Technical Reports database
37
SAGE Publications (via Crossref)
36
Cambridge University Press
33
Directory of Open Access Journals: DOAJ Articles
31
Theses Canada/Thèses Canada (Library and Archives Canada)
21
PRISM - University of Calgary Digital Repository
19
UQAM - Université du Québec à Montréal: archipel
19
University of Calgary Journal Hosting
19
University of British Columbia: cIRcle - UBC's Information Repository
15
Uppsala University: Publications (DiVA)
14
Queen's University, Ontario: QSpace
13
The University of Queensland: UQ eSpace
13
Cambridge University Press (via Crossref)
12
The Seattle Public Library Special Collections Online
10
The University of Western Ontario: Scholarship@Western
10
University of Victoria (Canada): UVicDSpace
10
Wilfrid Laurier University, Ontario: Scholars Commons@Laurier
10
Dalhousie University: DalSpace Institutional Repository
9
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
9
University of Toronto: Research Repository T-Space
9
Université Laval: CorpusUL
9
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
8
Informa (via Crossref)
8
Université de Nantes: HAL-UNIV-NANTES
8
Brill (via Crossref)
7
OpenEdition
7
York University, Toronto: YorkSpace
7
Oxford University Press (via Crossref)
6
The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository
6
University of California: eScholarship
6
University of Saskatchewan: eCommons@USASK
6
Université de Montréal (UdeM): Papyrus
6
WBI Studies Repository (WellBeing International)
6
Charles University CU Digital repository
5
Research from Toronto Metropolitan University
5
Saint Mary's University, Halifax: Institutional Repository
5
Swedish Museum of Natural History: Publications (DiVA)
5
University of Alberta: Era - Education and Research Archive
5
Utah State University: DigitalCommons@USU
5
VIURRSpace (Royal Roads University and Vancouver Island University)
5
WHO (World Health Organization): Institutional Repository for Information Sharing (IRIS)
5
Biodiversity Heritage Library (BHL)
4
Carleton University's Institutional Repository
4
Ike Skelton Combined Arms Research Library (CARL) Digital Library
4
Lund University Publications (LUP)
4
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