1. P. Läuger:Angew. Chem. Int. Ed. Engl. 24, 905 (1985).
2. G. Spach (Ed.):Physical Chemistry of Transmembranar Ion Motions, Elsevier, Amsterdam (1983). (b) J.-M. Lehn:ibid, p. 181.
3. J.-M. Lehn:Angew. Chem. Int. Ed. Engl. 27, 89 (1988).
4. Yu. A. Ovchinnikov, V. T. Ivanov and A. M. Shkrob:Membrane Active Complexones, Elsevier, New-York, Amsterdam (1974). (b) B. C. Pressman:Ann. Rev. Biochem. 45, 501 (1976). (c) S. B. Hladky and D. A. Haydon:Biochim. Biophys. Acta 274, 294 (1972).
5. A. Agtarap and J. W. Chamberlain:Antimicrob. Agents Chemother. (1961?1970), 359 (1968);