1. Ditl, P., et al.: Int. J. Heat Mass Transfer, 19, pp. 635–41 (1976).
2. Ditl, P., Rieger, F.: Paper V3. 61, CHISA Conference, Prague, August 1984.
3. Ditl, P.: Paper 18, Proceedings of 5th European Conference on Mixing, Würzburg, June 1985, BHRA Fluid Eng.
4. Ditl, P., Rieger, F.: Paper 8, ibid.
5. Harnby, N., Edwards, M.F., Nienow, A.W.: Mixing in the Process Industries, Butterworths, London, 1985.