| 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 |
| Martin 1992b | M. Martin, J. Photochem. Photobiol. A 66, 263289 (1992) C2 Spectroscopy and Kinetics |