1. Co-current liquid–gas flow in a pipeline contactor;Alves;Chem. Eng. Prog.,1954
2. Interfacial drag and film height for vertical annular flow;Asali;AIChE J.,1985
3. Anderson, G.H. & Hills, P.D., 1974. Two-phase annular flow in tube bends. Symposium on Multiphase flow Systems. University of Strathclyde, Glasgow, Paper J1, Published as Institution of Chemical Engineers Symposium, Series No. 38.
4. An impedance method for the measurement of liquid hold-up in two phase flow;Andreussi;Int. J. Multiphase Flow,1988
5. Drops in annular two-phase flow;Azzopardi;Int. J Multiphase Flow,1996