1. C. E. Moore, Atomic Energy Levels, NBS Circ. 467 (U.S. Dept. Commerce, Washington DC, 1949, 1952, 1958), Vols. 1–3.
2. J. A. Bearden and A. F. Burr, Rev. Mod. Phys. 39, 125 (1967).
3. Photoemission in Solids I: General Principles, Ed. by M. Cardona and L. Ley (Springer, Berlin, 1978).
4. J. C. Fuggle and N. Martensson, J. Electron Spectrosc., Relat. Phenom. 21, 275 (1980).
5. X-Ray Data Booklet (Center for X-ray Optics and Advanced Light Source, Lawrence Berkeley Natl. Labor., 2009). http://xdb.lbl.gov/.