1. Atkinson B, Mavituna F (1983) Biochemical Engineering and Biotechnology Handbook. Macmillan, Suffolk
2. Bliem R, Katinger H (1988) Tibtech 6: 224
3. Oosterhuis NMG (1983) in: “Advances in Fermentation”, Wheatland Journals Ltd., Hertsd., England, p 191
4. Oosterhuis NMG (1984) Ph. D. Thesis, Delft University of Technology
5. Kossen NWF, Oosterhuis NMG (1985) in: Biotechnology, Vol II, Chap. 24, Rehm NJ, Reed J (eds) VCH, Weinheim