The pure rotational and vibration-rotational Raman spectra of 1H3H and 2H3H - Edwards, H. G. M.; Long, D. A.; Mansour, H. R.; Najm, K. A. B. (Wiley-Blackwell, 1979)
http://dx.doi.org/10.1002/jrs.1250080507
Keywords: V; U