| Reference Label | Details |
|---|---|
| Moore 1970 | C. E. Moore, "Ionization Potentials and Ionization Limits Derived from Analyses of Optical Spectra", NSRDS-NBS 34, National Bureau of Standards: Washington, DC 1970 |
| Liden 1949 | K. Liden, Ark. Fys. 1, 229-267 (1949) The Arc Spectrum of Fluorine |