1. Baker, O., 1954, 'Design of Pipe Lines for the Simultaneous Flows of a Two-Phase Mixture in a Horizontal Pipe.' The Oil and Gas Journal.
2. Mandhane, J.M., Gregory, G.A. and Aziz, K.A., 1974, 'A Flow Pattern Map for Gas-Liquid Flow in Horizontal Pipes, Int. Jnl. Multiphase Flow, 1, pp. 537-553.
3. Taitel, Y. and Dukler, A.E., 1976, 'A Model for Predicting Flow Regime Transitions in Horizontal and Near Horizontal Gas-Liquid flow,' AIChE Journal, 22, pp 47-55.
4. Choe, W.G., Weinberg, L., and Weisman, J., 1979, 'Observation and Correlation of Flow Pattern Transitions in Horizontal Cocurrent Gas-Liquid Flow,' Two-Phase Transport and Reactor Safety, Hemisphere Publ. Co.
5. Richardson, B.L., 1958, 'Some Problems in Horizontal Two-Phase Two-Component Flow,' Argonne Nat'l Lab. Report No. ANL-5949.