Col Reference --- --------- R1 Ann H.B., et al. 1999, J. Korean Astron. Soc. 32, 7 R2 Kaluzny J., Mazur B. 1991, Acta Astr. 41, 279 R3 Phelps R.L., Janes K.A., Montgomery K.A. 1994, Astron. J. 107, 1079 Back to the form
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R1 Ann H.B., et al. 1999, J. Korean Astron. Soc. 32, 7
R2 Kaluzny J., Mazur B. 1991, Acta Astr. 41, 279
R3 Phelps R.L., Janes K.A., Montgomery K.A. 1994, Astron. J. 107, 1079