A. Bhardwaj A. Singh Harish Srinivasan Sargur N. Srihari On the Use of Lexeme Features for Writer Verification. 1088-1092 2007 conf/icdar/2007 ICDAR http://doi.ieeecomputersociety.org/10.1109/ICDAR.2007.198 db/conf/icdar/icdar2007.html#BhardwajSSS07