1. and A Comparative Study of Abatement Techniques for Volatile Organic Compounds (VOCs), in Proceedings of Intl Conf CHISA 2002 (Prague), Vol 2, pp 23-25 (2002).
2. Recovery of organic vapours from air: combination of membrane separation with pressure swing adsorption, GKSS (1995).
3. Verfahrenskombination aus Gaspermeation und Kondensation zur Abtrennung und Ruckgewinnung organischer Dampfe aus Abgasstromen, GKSS (1994).
4. Membrane Technology and Research, Inc, www.mtrinc.com
5. in Membrane Separation Processes, Ed by Elsevier, Amsterdam. Chapter 8 (1976).