1. Stryer, L. D.Biochemistry, 3rd ed.; Freeman: New York, 1988; pp 949−974.
2. Potassium-selective PVC membrane electrodes based on bis- and poly(crown ether)s
3. Hayashita, T.; Takagi, M. InComprehensive Supramolecular Chemistry; Gokel, G. W., Atwood, J. L., Davies, J. E. D., Macnicol, D. D., Vögtle, F., Lehn, J.M., Eds.; Pergamon: New York, 1996; Vol. 1, pp 635−669.