@misc{albrecht_hollow_fiber_1993, 
author={Albrecht, W., Weigel, T., Paul, D., Holtz, M.},
title={Hollow fiber membranes for the plasmapheresis},
year={1993},
howpublished = {conference lecture: Noordwijkerhout (NL);},
note = {Albrecht, W.; Weigel, T.; Paul, D.; Holtz, M.: Hollow fiber membranes for the plasmapheresis. 7. International Conference on Polymers in Medicine and Surgery. Noordwijkerhout (NL), 1993.}}