Piotrowski , Robert, and Adam Kowalczyk. “Optimal State Feedback Controller for Balancing Cube”. Journal of Automation, Mobile Robotics and Intelligent Systems 16, no. 3 (August 23, 2023): 3–12. Accessed May 15, 2025. https://jamris.d.tomp.pl/index.php/JAMRIS/article/view/784.