Pleiades

Number of stars per data source

	Reference    5 :    1 star
	Reference   16 :   35 stars

5: Maitzen H.M.; (1981) Astron. Astrophys. 95, 213; Photometric evidence for the appearance of the Lambda 5200 flux depression in helium-weak stars; 1981A&A....95..213M
16: Maitzen H.M., Pavlovski K.; (1987) Astron. Astrophys. 178, 313; Photoelectric search for CP2-stars in open clusters. IX. Pleiades and Coma Berenices. The case of Pleione; 1987A&A...178..313M