C. S. Sastry and  Saurabh Jain and  Ashish Mishra,  Application of l1-Norm Minimization Technique to Image Retrieval.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2009, vol. 32(8). 1646 - 1649
    [viewed 26 January 2020]. Available from: https://publications.waset.org/pdf/13329.