Maren Bennewitz Felix Faber Dominik Joho Sven Behnke Fritz - A Humanoid Communication Robot. 1072-1077 2007 RO-MAN http://dx.doi.org/10.1109/ROMAN.2007.4415240 conf/ro-man/2007 db/conf/ro-man/ro-man2007.html#BennewitzFJB07