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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
2
Niedersächsisches Online-Archiv NOA
2
DataCite Metadata Store (German National Library of Science and Technology)
1
GEO-LEOe-docs (FID GEO)
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1
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