The excitation of emission lines in late-type variables
By: by A.D. Thackeray.
Series: Contributions from the Mount Wilson observatory -- no. 580
Published: 1937
Place of publication: Chicago
Language: eng
Number of pages: 10
Subjects: Variable stars; Stars -- Spectra
Notes: At head of title: Carnegie institution of Washington.

"Reprinted from the Astrophysical journal, vol. 86, 1937."