1. W.D. Deckwer, Bubble Column Reactors, Wiley, New York, 1985, chapter 2, pp. 14–35
2. P.A. Ramachandran, R.V. Chaudhari, Three Phase Catalytic Reactors, Gordon and Breach, London, 1983, chapter 6, pp. 165–199 and chapter 9, pp. 281–307
3. The cocurrent downflow contactor (CDC) as a fixed bed and slurry reactor for catalytic hydrogenation
4. S. Sarmento, Ph.D. Thesis, University of Birmingham, UK, 1995, chapter 4, pp. 83–188