Ren C. Luo, Ming Hsiao, Che-Wei Liu. Descending stairs locomotion and somatosensory control for an erect wheel-legged service robot. In 2014 IEEE International Conference on Robotics and Automation, ICRA 2014, Hong Kong, China, May 31 - June 7, 2014. pages 6356-6361, IEEE, 2014. [doi]