1. M. Cremer, Z. Biol., 1906, 47, 562.
2. F. Haber, Z. Klemensiewicz, Z. Phys. Chem., 1909, 67, 385.
3. B.P. Nicolsky, Acta Physicochim. URSS, 1937, 7, 597.
4. M. Dole, The glass electrode. Methods, applications, and theory. Wiley, N.Y., 1941.
5. G. Eisenman (ed), Glass electrodes for hydrogen and other cations. Principles and practice. Dekker, N.Y., 1967.