Measurement of position offset in hard disk drive using dual frequency servo bursts. - Abdullah Al Mamun 002; Tong Heng Lee; Guoxiao Guo; Wai Ee Wong; W. C. Ye (IEEE Trans. Instrum. Meas., 2003)

Stretching servo performances on a spin stand. - Lu Feng; Wai Ee Wong; Chunling Du; Chang Duan; Guoxiao Guo; Tow Chong Chong; Weichun Ye (ACC, 2004)

NRRO Rejection using Online Iterative Control for High Density Data Storage on a PC-Based Spinstand Servo System. - Chee Khiang Pang; Wai Ee Wong; Guoxiao Guo; Ben M. Chen; Tong Heng Lee (ACC, 2007)