State Feedback and Torque Feed Forward Combined Control System for Suppressing Drill-Strings Stick-Slip VibrationMeng Fu, Jianghong Li, Yafeng Wu, Shubiao Song, Aiqi Zhao and Wenqing LiJNWPU, 37 2 (2019) 291-298DOI: https://doi.org/10.1051/jnwpu/20193720291