1. Arnold, V. E., “Calculating Minimum Reflux”, Chem. Eng. February 4, 59-62 (1985).
2. Calculation of Minimum Reflux for Distillation Columns with Multiple Feeds;Barnes;Ind. Eng. Chem. Process Des. Dev.,1972
3. Shortcut Methods for Complex Distillation Columns. 1. Minimum Reflux;Cerda;Ind. Eng. Chem. Process Des. Dev.,1981
4. Design of Distillation Columns with Multiple Feeds;Eduljee;British Chemical Engineering,1964
5. Hohmann, E. C., “Analytical McCabe-Thiele Method (Smoker's Equation)”, AIChE Series Module B1. 8, 42-50 (1980).