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Montana State University (MSU): ScholarWorks
3
Copernicus Publications: E-Journals
2
NORCE vitenarkiv (Norwegian Research Centre)
2
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
2
DataCite Metadata Store (German National Library of Science and Technology)
1
Informa
1
Niedersächsisches Online-Archiv NOA
1
ScienceDirect (Elsevier)
1
University of Tromsø: Munin Open Research Archive
1
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