Content Provider
WikiBooks - Open-content textbooks
111
Unknown
57
Biodiversity Heritage Library (BHL)
45
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
18
Cambridge University Press
18
Biblioteca Virtual del Patrimonio Bibliográfico
6
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
5
Open Research Library
5
Oxford University Press
4
Oxford University Press (via Crossref)
4
Texas A&M University Digital Repository
4
UNESDOC - UNESCO Digital Library
3
Université de Nantes: HAL-UNIV-NANTES
3
DataCite Metadata Store (German National Library of Science and Technology)
2
De Gruyter
2
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
2
IIASA DARE (Data Repository of the International Institute of Applied Systems Analysis)
2
IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository)
2
LaCRIS - University of Lapland Current Research System
2
MTAK: REAL (Library and Information Centre of the Hungarian Academy of Sciences
2
OpenEdition
2
RePEc (Research Papers in Economics)
2
School of Oriental and African Studies, University of London: SOAS Research Online
2
The University of Warwick: WRAP - Warwick Research Archive Portal
2
Universita degli Studi di Trieste: OpenstarTs
2
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto)
2
Zenodo
2
Aarhus University: Research
1
Aix-Marseille Université: HAL
1
Archives ouvertes de Paris-Saclay
1
British Museum Research Repository
1
Cornell University Press
1
DIGIBUG: Repositorio Institucional de la Universidad de Granada
1
Digitale Bibliothek Mecklenburg-Vorpommern (Greifswald University)
1
E-resource repository of the University of Latvia
1
FWF-E-Book-Library (Austrian Science Fund) / Fonds zur Förderung der wissenschaftlichen Forschung
1
Freie Universität Berlin: Refubium (FU Berlin)
1
Galiciana: Biblioteca Dixital de Galicia (Digital Library of Galicia)
1
Ghent University Academic Bibliography
1
HELDA – University of Helsinki Open Repository
1
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
1
IRIS Università degli Studi di Palermo
1
Inalco (Institut National des Langues et Civilisations Orientales): HAL
1
International Research Center for Japanese Studies Repository
1
JSTOR (via Crossref)
1
James Cook University, Australia: ResearchOnline@JCU
1
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
1
LSRC VL (Lithuanian Social Research Centre Virtual Library)
1
Leeds Trinity University: Research
1
Max Planck Society: MPG.PuRe
1
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