The intensity of twilight and its connection with the density of the atmosphere
By: by Arvid Ljunhall
Contributors: University of Lund
Series: Meddelande från Lunds Astronomiska Observatorium -- ser. 2, Nr. 125
Publisher: [s.n.]
Published: 1949
Place of publication: Hälsingborg
Language: eng
Number of pages: 171
Notes: Thesis (doctoral)--University of Lund, 1949.