S. Esakkirajan and  T. Veerakumar and  V. Senthil Murugan and  P. Navaneethan,  Image Compression Using Multiwavelet and Multi-Stage Vector Quantization.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2008, vol. 24(12). 2750 - 2757
    [viewed 11 April 2021]. Available from: https://publications.waset.org/pdf/13480.