1. ‘Morphotrust investigative solutions’ http://www.morphotrust.com/pages/1010-investigation
2. Targeted biometric impersonation;Bustard J.D.;Int. Work. Biometrics Forensics,2013
3. Hadid A. Ghahramani M. Kellokumpu V. Pietikainen M. Bustard J. Nixon M.: ‘Can gait biometrics be spoofed?’.Int. Conf. Pattern Recognition 2012 pp.3280–3283