Ajaykumar G P, Kaushikaa Siddharthaan, Gokul Subramaniam3, Mohamed Ameen4 Dr.L.Latha5. 2020. “Early-Stage Diabetic Retinopathy Severity Detection Using Generative Adversarial Network”. International Journal of Advanced Science and Technology 29 (7), 8119-27. http://sersc.org/journals/index.php/IJAST/article/view/24635.