TY - RPRT TI - Selected tables of atomic spectra - A atomic energy levels-second edition, B multiplet tables : Si II, Si III, Si IV - data derived from the analyses of optical spectra AU - Moore, Charlotte E PY - 1965 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS NSRDS 3sec1 DO - 10.6028/NBS.NSRDS.3sec1 ER -