Hashim, Ashwaq T., and Zina A. Saleh. “Fast Iris Localization Based on Image Algebra and Morphological Operations”. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 27, no. 2 (April 1, 2019): 143 - 154. Accessed July 7, 2020. https://journalofbabylon.com/index.php/JUBPAS/article/view/2073.