Strömgren four-colors photometry of X-ray active late-type stars : evidence for activity-induced in the m1 index /

Autor Morale, F.
Vydáno 1996

Papers presented at the workshop : cool stars in clusters and associations, magnetic activity and age indicators, Palermo, Italy, 20-23 May 1997 /

Autor Morale, F.
Vydáno 1998