Collinder 121

Number of stars per data source

	Reference  102 :    1 star
	Reference  149 :    3 stars
	Reference  201 :    1 star

102: Abt H.A., Morrell N.I.; (1995) Astrophys. J. Suppl. 99, 135; The relation between rotational velocities and spectral peculiarities among A-type stars; 1995ApJS...99..135A
149: Howarth I.D., Siebert K.W., Hussain A.J., Prinja R.K.; (1997) Mon. Not. R. Astron. Soc. 284, 265; Cross-correlation characteristics of OB stars from IUE spectroscopy; 1997MNRAS.284..265H
201: Levenhagen R.S., Leister N.V.; (2006) Mon. Not. R. Astron. Soc. 371, 252; Spectroscopic analysis of southern B and Be stars; 2006MNRAS.371..252L