1. Assure bioreactor sterility;Chisti;Chem. Eng. Prog.,1992
2. Operational aspects of bioreactor contamination control;Perkowski;J. Parent. Sci. Technol.,1990
3. The economic importance of sterility in industrial fermentation processes;Chaudhary,1994
4. Fermentation design;Soderberg,1983
5. Simplifying sterile access in bioreactor operations;Charton;Am. Biotechnol. Lab.,1990