1. Staats, P.A., Morgan, H.W., Goldstein, J.H.: Infrared spectra of T2O, THO, and TDO . J. Chem. Phys. 24 (1956) 916–917.
2. Bartlett, R.J., Cole, S.J., Purvis, G.D., Ermler, W.C., Hsieh, H.C., Shavitt, I.: The quartic force field of H2O determined by many-body methods. II. Effects of triple excitations. J. Chem. Phys. 87 (1987) 6579–6591.