Abhijit Mitra and  Pranab Kumar Banerjee and  C. Ardil,  Automatic Authentication of Handwritten Documents via Low Density Pixel Measurements.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2008, vol. 19(7). 2493 - 2497
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/6001.