@InProceedings{Broemme:2003:BIOSIG, author = {Arslan Br{\"o}mme and Stephan Al-Zubi}, title = {{M}ultifactor {B}iometric {S}ketch {A}uthentication}, booktitle = {Proceedings of the BIOSIG 2003}, pages = {81--90}, editor = {A. Br{\"o}mme and C. Busch}, year = {2003}, month = {24. July}, address = {Darmstadt, Germany}, pdf = {http://wwwisg.cs.uni-magdeburg.de/bv/pub/pdf/biosig2003.pdf} }