Content Provider
WikiBooks - Open-content textbooks
372
Biodiversity Heritage Library (BHL)
248
ULB Düsseldorf: Digitale Sammlungen (University Library of Düsseldorf University)
143
e-rara.ch (ETH Zürich)
49
GEO-LEOe-docs (FID GEO)
41
Staatsbibliothek zu Berlin: Digitised Collections
37
DataCite Metadata Store (German National Library of Science and Technology)
31
Share it - Open Access und Forschungsdaten-Repositorium der Hochschulbibliotheken in Sachsen-Anhalt
21
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
20
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
16
University of Vienna: Phaidra
16
OpenAgrar (OA)
15
TU Braunschweig: LeoPARD - Publications And Research Data
15
UNESDOC - UNESCO Digital Library
13
University of Tartu: Dspace
13
Doria (National Library of Finland)
12
Unknown
12
Open Research Library
11
HELDA – University of Helsinki Open Repository
8
Saxon State Library - State and University Library Dresden (SLUB): Qucosa
8
dilibri (Landesbibliothekszentrum Rhineland-Palatinate)
8
Publication Server of Goethe University Frankfurt am Main
7
KITopen (Karlsruhe Institute of Technologie)
6
MTAK: REAL-EOD (Library and Information Centre of the Hungarian Academy of Sciences
5
Max Planck Society: MPG.PuRe
5
University of Münster: Digital Collections
5
Eberhard Karls University Tübingen: Publication System
4
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
4
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED)
4
University of Freiburg: FreiDok
4
University of Szeged: SZTE Repository of Papers and Books
4
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
4
Universitätsbibliothek Paderborn: Digitale Sammlungen
4
Zenodo
4
Digitales Repositorium der Stadt- und Landesbibliothek Potsdam
3
E-resource repository of the University of Latvia
3
ETH Zürich Research Collection
3
GDZ - Center for Retrospective Digitization, Göttingen (Georg-August-Universität Götingen)
3
Heidelberg University Publishing - heiUP
3
MACAU: Open Access Repository of Kiel University
3
Universität der Bundeswehr München: AtheneForschung
3
BORIS (Bern Open Repository and Information System, University of Bern)
2
Biblioteca Virtual de Defensa (BVD - Ministerio de Defensa de España)
2
Catálogo Colectivo de la Red de Bibliotecas de los Archivos Estatales
2
Digital Library Thüringen
2
Dresden University of Technology: Qucosa
2
FWF-E-Book-Library (Austrian Science Fund) / Fonds zur Förderung der wissenschaftlichen Forschung
2
Heidelberg University Library: Heidelberg historic literature - digitized
2
IRUA - Institutional Repository van de Universiteit Antwerpen
2
Münster University (WWU): miami
2
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