Photometric researches
Subtitle: the variables SX Cassiopeiae, VW Cephei
By: by Raymond Smith Dugan.
Series: Contributions from the Princeton University Observatory.; no. 13
Publisher: The Observatory
Published: 1933
Place of publication: Princeton, N.J
Language: eng
Number of pages: 22
Subjects: Variable stars.; Stars -- Spectra.
Notes: Bibliography: p. 11, 22