Off-line Signature Verification based on the Modified Direction Feature. - Stephane Armand; Michael Blumenstein; Vallipuram Muthukkumarasamy (ICPR (4), 2006)

Off-line Signature Verification using the Enhanced Modified Direction Feature and Neural-based Classification. - Stephane Armand; Michael Blumenstein; Vallipuram Muthukkumarasamy (IJCNN, 2006)

Off-line Signature Verification Using an Enhanced Modified Direction Feature with Single and Multi-classifier Approaches. - Stephane Armand; Michael Blumenstein; Vallipuram Muthukkumarasamy (IEEE Comput. Intell. Mag., 2007)