Yiqin Lin and  Wenbo Li,  Bidirectional Discriminant Supervised Locality Preserving Projection for Face Recognition.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2019, vol. 155(11). 217 - 222
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10010925.