1. Theory of pressure drop and heat transfer for annular steady-state two-phase, two-component flow in pipes;Levy,1952
2. Upwards co-current annular flow of air and water in smooth tubes;Calvert;A.I.Ch.E. Jl,1955
3. Two phase (gas-liquid) flow phenomena—I. Pressure drop and hold-up for two-phase flow in vertical tubes;Anderson;Chem. Engng Sci.,1960
4. Fluid mechanics and heat transfer in vertical falling film system;Dukler;A.I.Ch.E. Preprint 101,1959
5. Analysis of annular two-phase flow:Applications of the Dukler analysis to vertical upward flow in a tube;Hewitt;AERE-R-3680,1961