Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
372
DataCite Metadata Store (German National Library of Science and Technology)
21
LeibnizOpen (The Leibniz Association)
20
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
19
Stockholm University Press (via Crossref)
3
Unknown
3
Copernicus Publications: E-Journals
1
Defense Technical Information Center: DTIC Technical Reports database
1
Directory of Open Access Journals: DOAJ Articles
1
German Aerospace Center: elib - DLR electronic library
1
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
1
Niedersächsisches Online-Archiv NOA
1
PubMed Central (PMC)
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
ScienceDirect (Elsevier - via Crossref)
1
Springer Nature (via Crossref)
1
Stockholm University Press
1
University of Copenhagen: Research
1
York University, Toronto: YorkSpace
1