Content Provider
Natural Environment Research Council: NERC Open Research Archive
29
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
19
Wright State University: CORE Scholar (Campus Online Repository)
10
University of Pennsylvania: ScholaryCommons@Penn
6
APS Digital Library (American Philosophical Society)
4
Directory of Open Access Journals: DOAJ Articles
3
Jefferson Digital Commons (Thomas Jefferson University, Philadelphia)
3
Aalborg University's Research Portal
2
City University of New York: CUNY Academic Works
2
DataCite Metadata Store (German National Library of Science and Technology)
2
DataverseNO
2
Digital Commons @ East Tennessee State University
2
Marshall University: Marshall Digital Scholar
2
The Cupola - Scholarship at Gettysburg College
2
Unknown
2
Wilfrid Laurier University, Ontario: Scholars Commons@Laurier
2
Aarhus University: Research
1
Aberdeen University Research Archive (AURA)
1
Apollo - University of Cambridge Repository
1
Bucknell University: Bucknell Digital Commons
1
Central Washington University: ScholarWorks
1
Digital Commons @ Wofford College
1
Digital Repository @ Iowa State University
1
Harvard University: DASH - Digital Access to Scholarship at Harvard
1
ORA - Oxford University Research Archive
1
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
1
PennState, The Dickinson School of Law: Penn State Law eLibrary
1
The Czech Academy of Sciences: Publication Activity (ASEP)
1
University of Copenhagen: Research
1
University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship)
1
University of Nebraska-Lincoln: DigitalCommons@UNL
1
University of Oklahoma/Oklahoma State University: SHAREOK Repository
1
University of São Paulo: Digital Library of Theses and Dissertations
1
University of Tromsø: Septentrio Academic Publishing
1
York University, Toronto: YorkSpace
1