1. Bubble-Tray Design Manual;AIChE,1958
2. Multicomponent distillation calculations on a large digital computer;Amundson;Ind. Eng. Chem.,1958
3. Designing sieve tray columns;Barnicki;Chem. Eng., NY,1989
4. Packed Towers;Billet,1995
5. Tray hydraulics: bubble-cap trays;Bolles,1963