1. Liquid distribution and liquid hold-up in modern high capacity packings
2. J.N. Knudsen, P.J. Vilhelmsen, JN Jensen, O. Biede, VGB Conference, Chemie im Kraftwerk, 11–12 Oct., Germany, 2006
3. P.H.M. Feron, M. Abu-Zahra, P. Alix, O. Biede, P. Broutin, H. de Jong, J. Kittel, J. Knudsen, L. Raynal, P.J. Vilhelmsen, in: 3th International Conference on Clean Coal Technologies for our Futur, Cagliari, Italy, 2007
4. P.V. Danckwerts, McGraw-Hill, New York, 1970