Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
15
da|ra - Registration agency for social and economic data
13
e-rara.ch (ETH Zürich)
4
Eberhard Karls University Tübingen: Publication System
3
WikiBooks - Open-content textbooks
3
DIAL@USL-B (Université Saint-Louis, Bruxelles)
2
Directory of Open Access Journals: DOAJ Articles
2
GEO-LEOe-docs (FID GEO)
2
Publication Server of Goethe University Frankfurt am Main
2
Unknown
2
Brigham Young University (BYU): ScholarsArchive
1
Contributions to Entomology = Beiträge zur Entomologie (E-Journal)
1
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
1
LIBDOC - Publikationsserver der Westsächsischen Hochschule Zwickau
1
Philipps-Universität Marburg: Publications
1
Prokla - Journal of Critical Social Science
1
TU Wien: reposiTUm
1
University of Vienna: Phaidra
1
Ural Federal University (URFU): ELAR
1