Content Provider
Washington State University: WSU Libraries Digital Collections
60
University of Calgary Journal Hosting
11
University of Alaska: ScholarWorks@UA
10
Defense Technical Information Center: DTIC Technical Reports database
7
Unknown
6
University of the Pacific, McGeorge School of Law: Scholarly Commons
5
University of the Pacific: Scholarly Commons
5
DataCite Metadata Store (German National Library of Science and Technology)
3
Hathi Trust Digital Library
3
North Dakota State University (NDSU): Digital Horizons
3
University of North Texas: UNT Digital Library
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Biodiversity Heritage Library (BHL)
2
Directory of Open Access Journals: DOAJ Articles
2
PALNI Digital Library Collections (Private Academic Library Network of Indiana)
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
The Portal to Texas History (University of North Texas)
2
UQAM - Université du Québec à Montréal: archipel
2
University of Lethbridge Digitized Collections
2
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
Zenodo
2
ASU VL (VMU - Vytautas Magnus University Agriculture Academy Virtual Library)
1
ATE Central Resource Collection (Advanced Technological Education)
1
Cambridge University Press
1
DergiPark Akademik (E-Journals)
1
Falmouth University Research Repository (FURR)
1
Ghent University Academic Bibliography
1
Hunter Library Digital Collections (Western Carolina University)
1
IssueLab (Nonprofit Research)
1
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
1
LSRC VL (Lithuanian Social Research Centre Virtual Library)
1
Mid Sweden University: Publications (DiVA)
1
National Institute of Polar Research Repository, Japan
1
Natural Environment Research Council: NERC Open Research Archive
1
Naval Postgraduate School: Calhoun
1
ScienceDirect (Elsevier - via Crossref)
1
The University of Utah: J. Willard Marriott Digital Library
1
University of Malta: OAR@UM
1
University of Southern Denmark Research Portal
1
University of Washington, Seattle: ResearchWorks
1
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
1
Université Grenoble Alpes: HAL
1
Université de Nantes: HAL-UNIV-NANTES
1