Content Provider
Biodiversity Heritage Library (BHL)
214
WikiBooks - Open-content textbooks
111
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
45
JSTOR
19
University of Copenhagen: Research
17
Unknown
15
Johns Hopkins University Press
14
OLAC: Open Language Archives Community
12
Cambridge University Press
9
JSTOR (via Crossref)
6
Oxford University Press (via Crossref)
5
Zenodo
5
De Gruyter
4
Oxford University Press
4
DataCite Metadata Store (German National Library of Science and Technology)
3
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
3
Max Planck Society: MPG.PuRe
3
TU Braunschweig: LeoPARD - Publications And Research Data
3
UNESDOC - UNESCO Digital Library
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Australian National University: ANU Digital Collections
2
Caltech Authors (California Institute of Technology)
2
Catálogo Colectivo de la Red de Bibliotecas de los Archivos Estatales
2
De Gruyter (via Crossref)
2
Université de Nantes: HAL-UNIV-NANTES
2
Vrije Universiteit Amsterdam (VU): Research Portal
2
Aisberg - Archivio istituzionale dell'Università di Bergamo
1
Aix-Marseille Université: HAL
1
American Museum of Natural History: AMNH scientific publications
1
Amsterdam University Press
1
Arca (BC's Digital Treasures)
1
Biblioteca Virtual de Defensa (BVD - Ministerio de Defensa de España)
1
Boston University: OpenBU
1
Brill
1
C.H. Beck (via Crossref)
1
Charles Darwin University: CDU eSpace
1
Digital Library Institut Seni Indonesia Yogyakarta
1
Digital Repository of the University of Hawaii at Manoa
1
Digitale Landesbibliothek Berlin (Zentral- und Landesbibliothek Berlin)
1
Doria (National Library of Finland)
1
Harvard University Press
1
IIASA DARE (Data Repository of the International Institute of Applied Systems Analysis)
1
IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository)
1
Informa
1
James Cook University, Australia: ResearchOnline@JCU
1
Johns Hopkins University Press (via Crossref)
1
Marmara Üniversitesi: Açık Arşiv Hizmete Girdi
1
Muséum National d'Histoire Naturelle (MNHM): HAL
1
Neapolis University, Cyrpus: HEPHAESTUS
1
Open Research Library
1
more ...