1. Allison J.B., Anderson J.A., Cole W.H.: The method of electrical conductivity in studies on bacterial metabolism.J.Bact. 36, 571 (1938).
2. American Public Health Association:Standard Methods for the Examination of Water and Wastewater, 14th ed. Amer. Pub. Health Assn., Washington (DC) 1975.
3. Bactomatic, Inc.:Operator’s inctrutions. Palo Alto (California) 94303 (1978).
4. Cady P.: Rapid automated bacterial identification by impedance measurements p. 73 in C.G. Heden, T. Illeni (Eds.):New Approaches to the Identification of Microogranisms. John Wiley & Sons, New York 1975.
5. Cady P., Lawless P., Kraeger S., Dufour S.: Monitoring microbial metabolism by impedance measurements. Paper presented at meeting ofDivision of Microbial Chemistry and Technology, Atlantic City (New Jersey) 1974.