%0 Journal Article %T Indicators of Solar and Stellar activity %A P.J.D. Mauas %A C. Cincunegui %J Revista mexicana de astronom¨ªa y astrof¨ªsica %D 2002 %I Universidad Nacional Aut¨®noma de M¨¦xico %U http://www.redalyc.org/articulo.oa?id=57101407