1. Flooding Velocities in Packed Columns;Bain;Trans. AIChE,1944
2. Fractionation Research, Inc., Proprietary Test Report, “No. 2 Nutter Ring”, Available from Nutter Engineering (1985).
3. Moore, F. and F. Rukovena, “Liquid and Gas Distribution in Packed Towers”, 36th Canadian Chemical Engineering Conference, Sarnia, Oct. 1986, Paper 23b.