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

Broer Hiemstra

Research output: ThesisThesis fully internal (DIV)

Original languageEnglish
QualificationDoctor of Philosophy
  • Rhijn, P.J. van, Supervisor, External person
Award date18-May-1938
Place of PublicationGroningen
Publication statusPublished - 1938

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