Investigations into the visual extinction
By: by Bengt Ekenberg.
Series: Lunds universitets årsskrift. n.f., avd. 2,; bd. 36, nr. 13; Kungl. fysiografiska sällskapets handlingar. n.f.,; bd. 51, nr. 13
Publisher: G.W.K. Gleerup; [etc., etc.
Published: 1940
Place of publication: Lund
Language: eng; swe
Number of pages: 32
Subjects: Stars -- Observations.
Other titles: Visual extinction.