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Dark clouds in Kapteyn's special areas 2, 5, 9 and 24 and the proper motions of the stars in these regions ...

Proefschrift--Groningen. / An investigation of dark areas in the Milky way to find the amount of light absorption and the distance of the absorbing clouds. cf. p. l.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/551290431
Date January 1938
CreatorsHiemstra, Broer,
PublisherGroningen, Gebroeders Hoitsema,
Source SetsOCLC
LanguageDutch
Detected LanguageEnglish
CoverageMilky Way.

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