[1] Falcone, G., Hewitt, G., Alimonti, C., "Multiphase flow metering: principles and applications". Vol. 54: Elsevier, (2009).
[2] Brandt, M., Tol, M., Ruden, L. A., "Improving measurement quality and meeting changing operator challenges with the multiphase meter". in Proc. 9th South East Asia Hydrocarbon Flow Measurement Workshop (Kuala Lumpur, Malaysia, (2010).
[3] Xie, Cheng-Gang, Germond, B., Jolivet, G., ''Multiphase Flow Meters and related methods.''U.S. Patent Application No. 15/570, 497, (2018).
[4] Shi, X., Tan, C., Dong, F., Murai, Y., ''Oil-gas-water three-phase flow characterization and velocity measurement based on time-frequency decomposition''. International Journal of Multiphase Flow, 111, 219-231, (2019).
[5] Åbro, E., Khoryakov, V. A., Johansen, G. A., Kocbach, L., ''Determination of void fraction and flow regime using a neural network trained on simulated data based on gamma-ray densitometry''. Measurement Science and Technology, 10(7), 619, (1999).
[6] Makogon, Taras, Y., ''Handbook of Multiphase Flow Metering''. Gulf Professional Publishing, (2019).
[7] Bastardo, R. A., Imam, A., Scoglio, J. V., "Field testing of an automated well tester in extra-heavy and diluted oil application". in SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, (2008).
[8] Hoffmann, R. Johnson, G. W., "Measuring phase distribution in high pressure three-phase flow using gamma densitometry". Flow Measurement and Instrumentation,. 22, 351-359, (2011)
[9] Hjertaker, B. T., Tjugum, S. A., Hammer, E. A., Johansen, G. A., ''Multimodality tomography for multiphase hydrocarbon flow measurements''. IEEE sensors journal, 5(2), 153-160, (2005).
[10] Ismail, I., Gamio, J. C., Bukhari, S. A., Yang, W. Q., ''Tomography for multi-phase flow measurement in the oil industry''. Flow measurement and instrumentation, 16(2-3), 145-155, (2005).
[11] Tezuka, K., Mori, M., Suzuki, T., Kanamine, T., ''Ultrasonic pulse-Doppler flow meter application for hydraulic power plants''. Flow Measurement and Instrumentation, 19(3-4), 155-162, (2008).
[12] Murakawa, H., Kikura, H. Aritomi, M., " Application of ultrasonic Doppler method for bubbly flow measurement using two ultrasonic frequencies". Experimental Thermal and Fluid Science,. 29, 843-850, (2005).