Biometrics and ID Management COST 2101 European Workshop, BioID 2011, Brandenburg (Havel), Germany, March 8-10, 2011. Proceedings - Vielhauer, Claus; Dittmann, Jana; Drygajlo, Andrzej; Juul, Niels Christian; Fairhurst, Michael C. (Springer Berlin Heidelberg, 2011)