WASET
    Anastasis Kounoudes and  Stephanos Mavromoustakos,  Intelligent Speaker Verification based Biometric System for Electronic Commerce Applications.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2008, vol. 20(8). 929 - 933
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/1289.