Ali Abdrhman Ukasha,  A New Method for Contour Approximation Using Basic Ramer Idea.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2011, vol. 49(1). 33 - 38
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/7891.