Referencias
- Dean J.F., Warren P.R., Cousins A.W.J., 1978, MNRAS 183, 569
- Kumar C.K., 1978 Astrophys. J. 219, L13
- Peterson Ch.J., Fitzgerald M.P., 1988,MNRAS 235, 1439
- Salpeter E.E., 1955, ApJ 121, 161
- Schaller G., Schaerer D., Meynet G., Maeder A. 1992, A&AS 96, 269
- Schmidt-Kaler Th. 1982, Landolt-Borstein VI/2b
- Serkowsky, K. 1973, IAU Symp. 52, 145
- Stetson P.B. 1987, PASP 99, 191
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