Content Provider
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Center for Jewish History: Digital Collections
4
DataCite Metadata Store (German National Library of Science and Technology)
34
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
13
Digital Repository of Scientific Institutes (RCIN)
2
Directory of Open Access Journals: DOAJ Articles
18
Doria (National Library of Finland)
1
Freie Universität Berlin: Refubium (FU Berlin)
2
GEO-LEOe-docs (FID GEO)
3
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
1
German Aerospace Center: elib - DLR electronic library
4
Gutenberg Open Science (Open-Science-Repository of the Johannes Gutenberg-University Mainz)
1
Hathi Trust Digital Library
1
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
1
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
1
North Dakota State University (NDSU): Digital Horizons
1
OPUS - Publication Server of the University of Stuttgart
2
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
1
Publication Server of Goethe University Frankfurt am Main
1
The Library of Congress: American Memory
1
The Portal to Texas History (University of North Texas)
3
UNESDOC - UNESCO Digital Library
1
UQAM - Université du Québec à Montréal: archipel
1
University of Michigan: Digital Collections
1
University of Potsdam: publish.UP
1
University of Washington, Seattle: Digital Collections
1
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
7
University of the Highlands and Islands: Research Database of UHI
1
Unknown
10
Wisconsin Historical Society: Turning Points in Wisconsin History
1
York University Digital Library
2
da|ra - Registration agency for social and economic data
21
ePLUS - Open Access Publikationsserver der Universität Salzburg
1