Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
5,201
Carleton University's Institutional Repository
8
PANGAEA - Data Publisher for Earth & Environmental Science
4
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
3
Canadian Science Publishing (via Crossref)
3
CyberLeninka (Scientific Electronic Library)
3
MacEwan Open Journals (MacEwan University)
3
Unknown
3
Aarhus University: Research
2
Arctic Data Center (via DataONE)
2
CURVE - Carleton University Research Virtual Environment
2
Dalhousie University: DalSpace Institutional Repository
2
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
2
Defense Technical Information Center: DTIC Technical Reports database
2
Durham University: Durham Research Online
2
University of Toronto: Research Repository T-Space
2
Wiley Online Library
2
Wiley Online Library (via Crossref)
2
Érudit.org (Université Montréal)
2
Columbia University: Academic Commons
1
Copernicus Publications: E-Journals
1
Directory of Open Access Journals: DOAJ Articles
1
East Carolina University: The ScholarShip at ECU
1
Geological Quarterly
1
Informa (via Crossref)
1
JSTOR (via Crossref)
1
Kazan Federal University Digital Repository
1
Keele University: Keele Research Repository
1
NORA (National aggregator of open repositories of Russian universities)
1
Niedersächsisches Online-Archiv NOA
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
PRISM - University of Calgary Digital Repository
1
Queen's University, Ontario: QSpace
1
SAGE Publications (via Crossref)
1
ScienceDirect (Elsevier)
1
Seoul National University: S-Space
1
Springer Nature (via Crossref)
1
Swedish Museum of Natural History: Publications (DiVA)
1
Theses Canada/Thèses Canada (Library and Archives Canada)
1
University of Calgary Journal Hosting
1
University of Iowa Libraries Publishing Journals
1
University of North Carolina: NC DOCKS (Digital Online Collection of Knowledge and Scholarship)
1
University of Tromsø: Munin Open Research Archive
1
Uppsala University: Publications (DiVA)
1
White Rose eTheses Online (Universities Leeds, Sheffield, York)
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1
Xiamen University Institutional Repository
1