Reference Label Details
Huber 1979K. P. Huber and G. Herzberg, "Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules", Van Nostrand Reinhold: New York 1979
est uncestimated uncertainty
Dhumwad 1981R. K. Dhumwad, A. B. Patwardhan, V. T. Kulkarni, and M. I. Savadatti,
Investigations in (0-0) Isotopic Bands of the C2 Swan system. J. Mol. Spectrosc. 85, 177–188 (1981)