Begol and  Moslem and  Maghooli and Keivan,  Improving Digital Image Edge Detection by Fuzzy Systems.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2011, vol. 57(9). 980 - 983
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/15831.