Ji-Wei, L. , Yu-Liang, P. , Qian, L. , Xiang, H. , De-Liang, Z. (2011), 'Design of Coal Quality Disturbance Free System for Coordinated Control System Based on Gain Scheduling', World Academy of Science, Engineering and Technology, Open Science Index 57, International Journal of Electrical and Computer Engineering, 5(9), 1274 - 1277.