Bochum 11

Number of stars per data source

	Reference  275 :    1 star
	Reference  485 :    7 stars

275: Walborn N.R.; (1972) Astron. J. 77, 312; Spectral classification of OB stars in both hemisphere and the absolute-magnitude calibration; 1972AJ.....77..312W
485: FitzGerald M.P., Mehta S.; (1987) Mon. Not. R. Astron. Soc. 228, 545; Spectroscopic and photometric observations in Bochum 10 and 11; 1987MNRAS.228..545F