Daniela Matei and  Radu Matei,  Detection of Diabetic Symptoms in Retina Images Using Analog Algorithms.   journal   = {International Journal of Medical and Health Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2008, vol. 21(9). 323 - 326
    [viewed 21 October 2021]. Available from: https://publications.waset.org/pdf/2336.