Biemont, E., Grevesse, N., Hannaford, P., & Lowe, R. M. 1981, ApJ, 248, 867
Cowan, R. D. 1981, The Theory of Atomic Structure and Spectra (California, USA: University of California Press)
Engström, L. 1998, Lund reports on atomic physics
Forsberg, R., Jönsson, H., Ryde, N., & Matteucci, F. 2019, A&A, 631, A113
Froese-Fischer, C., Brage, T., & Jönsson, P. 1997, Computational Atomic Structure: An MCHF Approach, 1st edn. (Bristol and Philadelphia: Institute of Physics Publishing)
Johnson, W. R., Kolb, D., & Huang, K. N. 1983, Atomic Data Nucl. Data Tables, 28, 333
Kiess, C. C., & Kiess, H. K. 1930, J. Res. Natl. Bureau Standards, 5, 1205
Langhans, G., Schade, W., & Helbig, V. 1995, Zeitschrift fur Physik D Atoms Molecules Clusters, 34, 151
Lawler, J., Schmidt, J., & Hartog, E. A. D. 2022, J. Quant. Spectr. Rad. Transf., 289, 108283
Learner, R. C. M., & Thorne, A. P. 1988, J. Opt. Soc. Am. B Opt. Phys., 5, 2045
Liggins, F. S., Pickering, J. C., Nave, G., et al. 2021, ApJ, 907, 69
Ljung, G., Nilsson, H., Asplund, M., & Johansson, S. 2006, A&A, 456, 1181
Malcheva, G., Blagoev, K., Mayo, R., et al. 2006, MNRAS, 367, 754
Molero, M., Magrini, L., Matteucci, F., et al. 2023, MNRAS, 523, 2974
Moore, C. E. 1952, Atomic Energy Levels, as Derived from the Analyses of Optical Spectra (USA: National Standard Reference Data Series, National Bureau of Standards), 2
Nave, G., Sansonetti, C. J., & Griesmann, U. 1997, in Fourier Transform Spectroscopy (USA: Optica Publishing Group), FMC.3