Hogg 15

Number of stars per data source

	Reference  257 :    1 star
	Reference 1014 :    1 star

257: Roberts M.S.; (1962) Astron. J. 67, 79; The galactic distribution of the Wolf-Rayet stars; 1962AJ.....67...79R
1014: van der Hucht K.A., Hidayat B., Admiranto A.G., Supelli K.R.,,Doom C.; (1988) Astron. Astrophys. 199, 217; The Galactic distribution and subtype evolution of Wolf-Rayet stars. III; 1988A&A...199..217V