1 P.F. Zittel, B.. Ellison, S.V. Oneil, E.. Herbst, C.. Lineberger, and W.P. Reinhardt, Journal of the American Chemical Society 98, (1976).
1 E.. Herbst, T.A. Patterson, D.W. Norcross, and C.. Lineberger, The Astrophysical Journal 191, (1974).