Gardecki, Stanislaw, Jaroslaw Goslinski, and Wojciech Giernacki. “The Influence of Drive Unit on Measurement Error of Ultrasonic Sensor in Multi-Rotor Flying Robot ”. Journal of Automation, Mobile Robotics and Intelligent Systems 7, no. 2 (January 22, 2013): 12–17. Accessed May 19, 2024. https://www.jamris.org/index.php/JAMRIS/article/view/258.