1. V. G. Dashevskii, Conformational Analysis of Organic Molecules [in Russian], Khimlya, Moscow (1982).
2. T. Clark and M. A. McCurvey, in: General Organic Chemistry [Russian translation], Vol. 1, Chap. 2, Khimiya, Moscow (1981).
3. U. Burkhert and N. L. Allinger, Molecular Mechanics, Washington (1982).
4. N. L. Allinger, J. Am. Chem. Soc.,99, 8127 (1977).
5. N. L. Allinger and Y. H. Juh, QCPE J.,13, 395 (1982).