@misc{darkow_surface_modified_1996, 
author={Darkow, R., Groth, T., Albrecht, W., Paulke, B.-R., Paul, D.},
title={Surface modified spherical adsorbent for removal of endotoxin},
year={1996},
howpublished = {conference lecture: Aachen (D);},
note = {Darkow, R.; Groth, T.; Albrecht, W.; Paulke, B.; Paul, D.: Surface modified spherical adsorbent for removal of endotoxin. IXth Colloquium on Biomaterials. Aachen (D), 1996.}}