1. Industrial applications of transformer bridge circuits;Calvert;British Communications and Electronics,1956
2. Double-ratio A.C. bridges with inductivity coupled ratio arms;Clark,1949
3. The thermostat salinity meter;Cox,1958
4. The induction conductivity indicator: a new method for conductivity measurement at sea;Esterson;Chesapeake Bay Inst. Technical Report XIV,1957
5. A precision electrode-less conductance cell for use at audio frequencies;Gupta;J. Sci. Instrum.,1956