1. E. Weber (Ed.):Molecular Inclusion and Molecular Recognition - Clathrates I and II (Topics in Current Chemistry, Vols. 140 and 149). Springer-Verlag, Berlin-Heidelberg-New York (1987 and 1988). (b) J. L. Atwood, J. E. D. Davies, and D. D. MacNicol (Eds.):Inclusion Compounds, Vols. I?III. Academic Press, London (1984).
2. G. Tsoucaris: inOrganic Solid State Chemistry (Studies in Organic Chemistry 32, Ed. G. R. Desiraju), pp. 207?270. Elsevier, Amsterdam (1987).
3. Recent examples: (a) E. Weber, M. Hecker, I. Csöregh, and M. Czugler:J. Am. Chem. Soc. 111, 7866 (1989). (b) E. Weber, K. Skobridis, and I. Goldberg:J. Chem. Soc., Chem. Commun. 1195 (1989). (c) F. Toda, A. Kai, R. Toyotaka, W.-H. Yip, and T. C. W. Mak:Chem. Lett. 1921 (1989)
4. See E. Weber and M. Czugler: in ref. 1(a), Vol. 149, pp. 45?135.
5. See 1. Goldberg: in ref. 1(a), Vol. 149, pp. 1?44.