Beobachtungen veränderlicher Sterne
By: von Michael Esch.
Series: Veröffentlichungen / Sternwarte des Ignatiuskollegs, Valkenburg, Niederlande ;; Nr. 1-5, 7; Veröffentlichungen (Ignatiuskolleg, Valkenburg, Limburg, Netherlands. Sternwarte) ;; Nr. 1, etc.
Publisher: s.n.
Published: 1930
Place of publication: [Valkenburg (L) Niederlande?
Language: ger
Subjects: Variable stars -- Observations.
Notes: Chiefly tables.