Sayeed, Farrukh, Madasu Hanmandlu, and Abdul Ansari. “Face Recognition Using Segmental Euclidean Distance”. Defence Science Journal 61, no. 5 (September 2, 2011): 431-442. Accessed June 2, 2020. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1178.