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LeibnizOpen (The Leibniz Association)
20
Unknown
3
DataCite Metadata Store (German National Library of Science and Technology)
1
Queen Mary University of London: Queen Mary Research Online (QMRO)
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
Vrije Universiteit Amsterdam (VU): Research Portal
1
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