References

 
• Armandroff T.E., 1988, AJ 96, 588 NASA ADS  
• Bica E., Clariá J.J., Piatti A.E., Bonatto C., 1998, A&AS 131, 483 NASA ADS  
• Bica E., Ortolani S., Barbuy B., 1994, A&A 283, 67 NASA ADS  
• Bica E., Ortolani S., Barbuy B., 1999, A&AS 136, 363 NASA ADS  
• Bertelli G., Bressan A., Chiosi C., Fagotto F., Nasi E., 1994, A&AS 106, 275 NASA ADS  
• Carraro G., Ng Y.K., Portinari L., 1998, MNRAS 296, 1045 NASA ADS  
• Dutra C.M., Bica E., 2000, A&A 359, 347  
• Friel E.D., 1995, ARA&A 33, 381 NASA ADS  
• Girardi L., Bressan A., Bertelli G., Chiosi C., 2000, A&AS 141, 371 NASA ADS  
• Harris W.E., Phelps R.L., Madore B.F., et al., 1997, AJ 113, 688 NASA ADS  
• Holmberg E.B., Lauberts A., Schuster H.E., West R.M., 1977, A&AS 27, 295 NASA ADS  
• Janes K.A., Phelps R.L., 1994, AJ 108, 1773 NASA ADS  
• Kaisler D., Harris W.E., McLaughlin D.E., 1997, PASP 109, 920 NASA ADS  
• Landolt A.U., 1983, AJ 88, 439 NASA ADS  
• Lauberts A., 1982, The ESO/Uppsala Survey of the ESO (B) Atlas, European Southern Observatory. Garching bei München  
• Malkan M., Kleinmann D.E., Apt J., 1980, ApJ 237, 432 NASA ADS  
• Malkan M.A., 1982, in Astrophysical Parameters for Globular Clusters, IAU Coll. 68, Philip A.G.D., Hayes D.S (eds.). Schenectady: Davis, p. 533  
• Ortolani S., Barbuy B., Bica E., 1990, A&A 236, 362 NASA ADS  
• Ortolani S., Bica E., Barbuy B., 1993, A&A 273, 415 NASA ADS  
• Ortolani S., Bica E., Barbuy B., 1995, A&A 300, 726 NASA ADS  
• Ortolani S., Bica E., Barbuy B., 1997, A&AS 126, 319 NASA ADS  
• Reid M., 1993, ARA&A 31, 345 NASA ADS  
• Rosino L., Ortolani S., Barbuy B., Bica E., 1997, MNRAS 289, 745 NASA ADS  
• Scott J.E., Friel E.D., Janes K.A., 1995, AJ 109, 1706 NASA ADS  
• Webbink R.F., 1985, in Dynamics of Star Clusters IAU Symp. 113, Goodman J., Hut P. (eds.). Dordrecht: Reidel, p. 541  
• van den Bergh S., Hagen G.L., 1975, AJ 80, 11 NASA ADS  
• Zinn R., 1985, ApJ 293, 424 NASA ADS