1. Flory, P. J., Principles of Polymer Chemistry (Cornell University Press, Ithaca, New York, 1953).
2. Vol'kenshtein, M. V., Configurational Statistics of Polymer Chains (Wiley, New York, 1963).
3. Birshtein, T. M., and Ptitsyn, O. B., Conformations of Macromolecules (Nauka, Moscow, 1964).
4. Flory, P. J., Statistical Mechanics of Chain Molecules (Wiley, New York, 1969).
5. Schill, G., Catenanes, Rotaxanes and Knots (Academic, New York, 1971).