Trumpler 37

Number of stars per data source

	Reference   44 :    1 star
	Reference  114 :    1 star
	Reference  122 :    1 star
	Reference  345 :    1 star
	Reference  372 :    1 star

44: Crawford D.L., Barnes J.V., Golson J.C.; (1971) Astron. J. 76, 1058; Four-color and Hbeta photometry for bright B-type stars in the northern hemisphere; 1971AJ.....76.1058C
114: Morrison N.D.; (1975) Astrophys. J. 200,113; Photometry of O-type stars,interpreted with reference to model atmospheres; 1975ApJ...200..113M
122: Crawford D.L.; (1975) Publ. Astron. Soc. Pacific 87, 481; Four-color and Hbeta photometry of O-type stars; 1975PASP...87..481C
345: Olsen E.H.; (1983) Astron. Astrophys. Suppl. 54, 55; Four-colour ubvy and Hbeta photometry of A5 to G0 stars brighter than 8.3m; 1983A&AS...54...55O
372: Tobin W.; (1985) Astron. Astrophys. Suppl. 60, 459; Four-colour Hbeta photometry of blue stars selected from a balloon-ultraviolet survey and other sources; 1985A&AS...60..459T