TY - RPRT TI - Atomic transition probabilities, volume II. sodium through calcium : a critical data compilation AU - Wiese, Wolfgang L AU - Smith, Melvin W AU - Miles, B M PY - 1969 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS NSRDS 22 DO - 10.6028/NBS.NSRDS.22 ER -