1. Dept. of Biochemical Engineering; University College London; London WC1E 7JE U.K.
2. Biotechnology Controlling; Bayer Healthcare; Berkeley California, USA
3. Process Development and Optimisation, Bayer AG; Leverkusen Germany
4. Dept. of Chemical Engineering, Centre for Process Systems Engineering; University College London; London WC1E 7JE U.K.