1. M. Dole,J. Chem. Phys. 1934,2, 862.
2. B. P. Nikolski,Zh. Fiz. Khim. 1937,10, 495.
3. G. Eisenman, in:Ion-Selective Electrodes (R. A. Durst, ed.), U. S. National Bureau of Standards, Spec. Publ. No. 314, Washington, 1969, chapt. 1.
4. R. P. Buck,Anal. Chem. 1968,40, 1432.
5. E. Pungor, K. T�th,Anal. Chim. Acta 1969,47, 291.