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BORIS (Bern Open Repository and Information System, University of Bern)
1
Copernicus Publications: E-Journals
1
DataCite Metadata Store (German National Library of Science and Technology)
1
Niedersächsisches Online-Archiv NOA
1
RERO DOC Digital Library
1
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
1
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