3Wu Y C, Koch W F, Pratt K W. J Res Natl Inst Stand Technol.1991, 96:191.
4Wu Y C, Feng D, Holland L A. J Res Natl Inst Stand Technol,1994, 99:241.
5Wu Y C, Pratt K W, Koch W F. J Solution Chem, 1989, 18:515.
6Zbigniew Moron, Zbigniew Rucki. IEEE Transactions on Instrumentation and Measurement, 1997.46 (6) : 1 268.
7Moro Z, Rucki Z, Szczepanik Z. The possibility of employing a calculable four-electrode conductance cell to substitute for the secondary standards of electrolytic conductivity[ J ] IEEE Transactions on Instrumentation and Measurement, 1997,46(6) : 1268 - 1273.
8Morofi Z. Investigations of van der Pauw method applied for measuring electrical conductivity of electrolyte solution [J]. Measurement, 2003,33(3): 281 - 290.
9Szczepanik Z, Rucki Z. Field analysis and electrical models of multi-electrode impedance sensors [ J]. Sensors and Actuators A : Physical ,2007,133 ( 1 ) : 13 - 22.