Walas, Krzysztof, and Dominik Belter. “Messor – Verstatile Walking Robot for Serach and Rescue Missions”. Journal of Automation, Mobile Robotics and Intelligent Systems, vol. 5, no. 2, Jan. 2013, pp. 28-34, https://www.jamris.org/index.php/JAMRIS/article/view/161.