Content Provider
LeibnizOpen (The Leibniz Association)
20
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
16
DataCite Metadata Store (German National Library of Science and Technology)
12
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
10
Niedersächsisches Online-Archiv NOA
5
Unknown
3
Zenodo
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
University of Potsdam: publish.UP
2
GEO-LEOe-docs (FID GEO)
1
IOP Publishing (via Crossref)
1
NORCE vitenarkiv (Norwegian Research Centre)
1
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
ScienceDirect (Elsevier - via Crossref)
1
Springer Nature (via Crossref)
1
Université de Nantes: HAL-UNIV-NANTES
1
Vrije Universiteit Amsterdam (VU): Research Portal
1