Boroujeni, Farsad, Rahmita Wirza, O. Rahmat, Norwati Mustapha, Lilly Affendey, and Oteh Maskon. “Automatic Selection of Initial Points for Exploratory Vessel Tracing in Fluoroscopic Images”. Defence Science Journal 61, no. 5 (September 2, 2011): 443-451. Accessed April 10, 2020. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1179.