VALD–2: Progress of the Vienna Atomic Line Data Base F. Kupka, N. Piskunov, T. A. Ryabchikova, H. C. Stempels and W. W. Weiss Astron. Astrophys. Suppl. Ser., 138 1 (1999) 119-133 Published online: 15 July 1999 DOI: 10.1051/aas:1999267