1. Capacitance transducers for non intrusive measurements of water in crude oil;Hammer;Flow Meas. Instrum.,1989
2. The use of capacitance sensors for phase percentage determination in multiphase pipelines;Sami;IEEE Trans. Instrum. Meas.,1980
3. M.L. Mougne, Method and apparatus for measurement and calculating bulk water in crude oil, US Patent No. 4 916 940 (1990)
4. R.A. Meador and H.J. Paap, Crude oil production stream analyzer, US Patent No. 4 458 524 (1984)
5. J. Agar, Method and apparatus for net oil measurement, US Patent No. 4 774 680 (1988)