Источник данных #6240
@article{7185EL, journal={J. Phys. Chem. Ref. Data}, volume={14}, suppl={2}, pages={1--664}, title={Atomic Energy Levels of the Iron-Period Elements: Potassium through Nickel}, author={J. Sugar and C. Corliss}, year={1985}, notes={NIST compilation}}
@article{7185EL, journal={J. Phys. Chem. Ref. Data}, volume={14}, suppl={2}, pages={1--664}, title={Atomic Energy Levels of the Iron-Period Elements: Potassium through Nickel}, author={J. Sugar and C. Corliss}, year={1985}, notes={NIST compilation}}