1. D. Biedenkapp and A. Weiss,J. Chem. Phys.,49, No. 9, 3933–3963(1968).
2. A. D. Gordeev, D. I. Efremov, G. B. Soifer, and V. V. Shchepin,Zh. Skrukt. Khim.,37, No. 3, 494–500 (1996).
3. H. Chihara and N. Nakamura,Advances in Nuclear Quadrupole Resonance,4, 1–69 (1980).
4. Yu. N. Gachegov and G. B. Soifer,Zh. Strukt. Khim.,31, No. 4, 41–44 (1990).
5. R. J. Brown,J. Chem. Phys.,32, No. 1, 116–118 (1960).