1. Van der Wende, L. A. (ed.) (1989),Bioprocessing Technol. 11(2), 1.
2. Dykins, F. A., Kleiderer, E. C., Heubaum, U., Hardy, V. R., and Englis, D. T.(1933),Ind. Engineer. Chem. 25(8), 937–940.
3. US Pat. 2,782,123 (Feb., 1957).
4. Fontana, J. D., Correa, J. B. C., Duarte, J. H., Barbosa, A. M., and Blumel,M. (1984),Biotechnol. Bioeng. Symp. 14, 175–186.
5. Kosaric, N., Wieczorek, A., Cosentino, G. P., and Duvnjak, Z. (1985),Adv.Biochem. Engineer. 32, 1–23.