The variable spectrum of 10 lacertae
By: [by] R. van Helden.
Series: Utrechtse sterrekundige overdrukken,; no. 12
Publisher: Sterrewacht Sonnenborgh
Published: 1966
Place of publication: Utrecht
Language: eng
Number of pages: 371
Subjects: Variable stars; BL Lacertae objects; Spectra
Notes: Bibliography: p. 371.
Cover title.