Tables of Spectral-line Intensities: The Intensity, Character, Wavelength, and Spectrum of 39,000 Lines Between 2000 A and 9000 A Observed in Copper Arcs Containing 0.1 Atomic Percent of Each of 70 Elements, Volume 32, Part 1
William Frederick Meggers
Jan 1961 · U.S. Department of Commerce, National Bureau of Standards