KRYSIAK, Bartlomiej; PAZDERSKI, Dariusz; KOZLOWSKI, Krzysztof. Modelling and experimental reseach of nonholonomic ball gear. Journal of Automation, Mobile Robotics and Intelligent Systems, [S. l.], v. 5, n. 3, p. 27–32, 2013. Disponível em: https://www.jamris.org/index.php/JAMRIS/article/view/171.. Acesso em: 19 may. 2024.