Santos, W., Barbosa, E., Neto, S., Lima, A. and Lima, W. 2014. Three-phase flow (water, oil and gas) in a vertical circular cylindrical duct with leaks: A theoretical study. The International Journal of Multiphysics. 8, 3 (Sep. 2014), 253-270. DOI:https://doi.org/10.1260/1750-9548.8.3.253.