Vishal Awasthi and  Atul Kumar Agnihotri,  A Structural Support Vector Machine Approach for Biometric Recognition.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2021, vol. 172(4). 273 - 280
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10011989.