1. 1) Reviews: (a) G. Schill, “Catenanes, Rotaxanes, and Knots”, Academic Press, New York, 1971
2. (b) D. B. Amabilino, J. F. Stoddart, Chem. Rev., 95, 2725 (1995)
3. (c) H. W. Gibson, “Large Ring Molecules” ed. by J. A. Semlyen, Wiley, Chichester 199
4. (d) R. Jäger, F. Vögtle, Angew. Chem., Int. Ed. Engl., 36, 930 (1997)
5. (e) “Molecular Catenanes, Rotaxanes and Knots” eds. by J.-P. Sauvage, C. Dietrich-Buchecker, Wiley-VCH, Weinheim, 1999