Content Provider
LeibnizOpen (The Leibniz Association)
20
Unknown
2
DataCite Metadata Store (German National Library of Science and Technology)
1
The University of Adelaide: Digital Library
1
UNSW Sydney (The University of New South Wales): UNSWorks
1
Universidad de Chile: Repositorio académico
1
University of Tasmania: UTas ePrints
1
Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V:
1
Utrecht University Repository
1