| Reference Label | Details |
|---|---|
| Huber 1979 | K. P. Huber and G. Herzberg, "Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules", Van Nostrand Reinhold: New York 1979 |
| est unc | estimated uncertainty |
| Wolniewicz 1965 | L. Wolniewicz, J. Chem. Phys. 43, 1087-1091 (1965) Variational Treatment of the HeH+ Ion and the beta-Decay in HT |