@misc{weigel_membrane_preparation_1999, 
author={Weigel, T.,Albrecht, W.,Otto, S.,Hilke, R.,Paul, D.},
title={Membrane preparation with multilayer wide slit dies},
year={1999},
howpublished = {conference poster: Toronto (CDN); 12.-18.06.1999},
note = {Online available at: \url{} (DOI). Weigel, T.; Albrecht, W.; Otto, S.; Hilke, R.; Paul, D.: Membrane preparation with multilayer wide slit dies. In: ICOM 99 Toronto. Toronto (CDN). 1999.}}