Akers Eric, L., and Arvin Agah. “Topological Localization Using Appearance-Based Recognition”. Journal of Automation, Mobile Robotics and Intelligent Systems 4, no. 1 (January 22, 2013): 68–84. Accessed May 15, 2025. https://jamris.d.tomp.pl/index.php/JAMRIS/article/view/106.