Content Provider
Copernicus Publications: E-Journals
1
DataCite Metadata Store (German National Library of Science and Technology)
2
KITopen (Karlsruhe Institute of Technologie)
1
LeibnizOpen (The Leibniz Association)
21
Niedersächsisches Online-Archiv NOA
1
PuSH - Publikationsserver des Helmholtz Zentrums München
1
Unknown
2