1. Blum Z, Lidin S, Anderson S (1989) Angew Chem 100: 995; Int Ed Engl 27: 953
2. Some books and reviews on Supramolecular Chemistry and Host Guest Chemistry: (a) Weber E, Vögtle F (eds) (1992) Macrocycles. Top Curr Chem 161
3. Weber E (ed) (1993) Supramolecular Chemistry I-Directed synthesis and molecular recognition. Top Curr Chem 165.
4. Vögtle F (1989) Supramolekulare Chemie. Teubner, Stuttgart; (1991) Supramolecular Chemistry. Wiley, Chichester.
5. Vögtle F, Weber E (eds) (1985) Host guest complex chemistry-Macrocycles, synthesis, structures, applications. Springer, Berlin Heidelberg New York