Ahmed Badawi,  Scatterer Density in Nonlinear Diffusion for Speckle Reduction in Ultrasound Imaging: The Isotropic Case.   journal   = {International Journal of Biomedical and Biological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2008, vol. 13(1). 40 - 58
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/1022.