1. Inorganic Membranes, Materials Science and Technology
of Polymers, Department of Science and Technology, MESA+ Institute
for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
2. Chemical
Process Engineering-AVT.CVT, RWTH Aachen University, Turmstrasse
46, 52056 Aachen, Germany
3. DWI Leibniz Institute for Interactive Materials, Forckenbeckstrasse
50, 52074 Aachen, Germany