1. P.A. Mark, J.L. Sproston, M.W. Johnston, Theoretical and experimental studies of two-phase flows in turbines meters, in: International Conference on Basic Principles and Industrial Applications of Multiphase Flow, 24–25 April, 1990.
2. A.R.W. Hall, Flow characteristics of three-phase flows of oil, water and gas, in: International Conference of Flow Measurement, Flomeko '96, Beijing, China, 20–24 October, 1996.
3. A.F. Skea, Effects of two-phase flow on single-phase flowmeters, Dti Flow Programme Guidance Notes, No. 3, July, 1997.