1. Aiba, S., Humphrey, A.E., Millis, N.F.: Biochemical engineering. New York: Academic Press 1973
2. Aiba, S., Nagai, S., Nishizawa, Y.: Biotechnol. Bioeng. 18, 1001 (1976)
3. Ames, H.S., Crawford, R.W.: Int. Labor. 1977 (3/4), 45
4. Armiger, W.B., Zabriskie, D.W., Humphrey, A.E.: In: Proc. 5. Int. Ferm. Symp. Delweg, H. (ed.), p. 33. Berlin: Inst. f. Gärungsgew. u. Biotechnol. 1976
5. Bach, H.P.: Thesis, Techn. Univ. Wien, Inst. Biochem. Technol. and Microbiol., 1976