@misc{papra_modification_of_1997, 
author={Papra, A.,Hicke, H.-G.,Becker, M.},
title={Modification of Poly-(ethyleneterephthalate) Particle Track Membranes for Immobilisation of Enzymes},
year={1997},
howpublished = {conference paper,conference lecture: Enschede (NL); June 23-27, 1997},
note = {Online available at: \url{} (DOI). Papra, A.; Hicke, H.; Becker, M.: Modification of Poly-(ethyleneterephthalate) Particle Track Membranes for Immobilisation of Enzymes. In: Kemperman, A.; Koops, G. (Ed.): Book of Abstracts: Euromembrane '97 - Progress in Membrane Science and Technology; Third International Symposium. Enschede (NL). 1997. 298-300.}}