1. Nyiri, L.K., Jefferis, R.P. and Humphrey, gnA.E. 1974. Biotech. Bioeng. Symposium No.4. 613?628.
2. Peringer, P. and Blachere, H.T. 1979. Biotech. Bioeng. Symposium No.9. 208.
3. Wang, H.Y., Cooney, C.L. and Wang, D.I.C. 1979. Biotech. Bioeng. 21, 975?995.
4. White, J. 1954. Yeast Technology, Chapman and Hall, London.
5. Grayson, P. Process Biochem. 4 (3), 43?4, and 61.