1. A. Dhariwal, The significance of Submerged Ceramic Membrane systems for production oriented Bioprocesses, Thesis, Universität Saarbrücken, 2007.
2. In-situ product removal as a tool for bioprocessing;Freeman;Biotechnology,1993
3. Cell retention devices for suspended-cell perfusion cultures;Castilho,2002
4. Integration of fermentation and membrane processes;Crespo,1994
5. Vortex flow filtration tor cell separation in bioreactor operations;Roth,2001