1. T. V. Timofeeva, N. Yu. Chernikova, and P. M. Zorkii, Usp. Khim., 49, No. 6, 966–977 (1980).
2. V. G. Dashevskii, The Conformation of Organic Molecules [in Russian], Khimiya, Moscow (1974).
3. V. A. Zubkov and I. S. Milevskaya, Zh. Strukt. Khim., 26, No. 2, 29–35 (1985).
4. G. K. El'yashevich, V. I. Poddubnyi, and A. V. Bezprozvannykh, Acta Polym., 41, No. 3, 147–152 (1990).
5. Paul J. Flory, Statistical Mechanics of Chain Molecules, Butterworth—Heinemann, London (1969).