1. Borzani, W., Concone B.R.V., Vairo, M.L.R., Doin, P.A., and Kovacs, J. (1971). Recent Advances in Microbiology, pp. 419?425, Mexico.
2. Borzani, W. and Hiss, H. (1979). Biotechnol. Bioeng., 21, 2149?2152.
3. Hiss, H., Finguerut, J., and Borzani, W. (1977). J. Ferment. Technol., 55, 405?408.
4. Reddy, P.G., Singh, H.D., Roy, P.K., and Baruah, J.N. (1982). Biotechnol. Bioeng., 24, 1241?1269.
5. White, J. (1954). Yeast Technology, London, Chapman & Hall.