v. 1. Microbial rundamentals - - v. 2. fundamentals of biochemical engineering - - v. 3. Biomass, Microorganisms for special applications... - - V. 4. Microbial products II - - v. 5 food and feed production with microorganisms - - v. 6a Biotransformations - - v. 6. Special microbial processes - - v. 7. Enzymes in biotechnology - - v. 8. Microbial degradations