Fan, En, Weixin Xie, Zongxiang Liu, and Peng-fei Li. “Range-Only Target Localisation Using Geometrically Constrained Optimisation”. Defence Science Journal 65, no. 1 (February 26, 2015): 70-76. Accessed April 26, 2024. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/5474.