1. Thomas Peterson Jr., Net charge measurement of dielectrics in ground potential equilibrium as a function of time and temperature, 1995, US Patent #5,450,005 (additional patents issued in England, Germany, France, Italy, and Japan).
2. Keithley Instrument Co. Operator's Manual for the 2001 Digital Multimeter, 1992, pp 56, 110, 111 (Chapter 3).
3. Thomas Peterson, Jr., Electrochemical measurement anomalies, and related geophysical factors, International Committee for Research and Study of Environmental Factors, October 1999, Partenit, Crimea, Ukraine.
4. Thomas Peterson, Jr., Dielectric ground potential charge and the solar wind—a possible biological connection, International Symposium of Charge and Field Effects in Biosystems, June 1994, Virginia Commonwealth University, Richmond, Virginia (proceedings by World Scientific).
5. Manual for the Model 142 Orion Conductivity Meter, pp. 7, 61.