1. Uma, V. and Polasa, H. (1983),J. Microb. Biotechnol. 3(2), 70.
2. Rogers, P. L., Lee, K. L., Scotnicki, M. L., and Tride, D. E. (1982),Adv. Biochem. Eng. 23, 37.
3. Converti, A., Perego, P., Lodi, A., Parisi, F., and DelBorghi, M. (1985),Biotechnol. Bioeng. 27(8), 1108.
4. Martinez, E., Guitierez, L., Chamizo, A., Alonso, A., Echevaria, R., Rodriguez, D., and Gonalez, L. (1987)),Sobre Deriv. Cana Azucar,21(2), 1.
5. Grote, W., Lee, K., Rogers, P. (1980),Biotechnol. Lett. 2, 481.