Bohatier, C., and Cz. Bajer. “Kinematic Approach to Dynamic Contact Problems - The Geometrical Soft Way Method”.
Engineering Transactions 43, no. 1-2 (July 1, 1995): 101–111. Accessed July 12, 2025.
https://et.ippt.pan.pl/index.php/et/article/view/1487.