Soltanpour, M. R., and S. E. Shafiei. “Robust Backstepping Control of Robot Manipulator in Task Space With Uncertainties in Kinematics and Dynamics”. Elektronika ir Elektrotechnika 96, no. 8 (October 20, 2009): 47-50. Accessed October 4, 2022. https://eejournal.ktu.lt/index.php/elt/article/view/9966.