X. Liu

Design and implementation of NTU wearable exoskeleton as an enhancement and assistive device

K. H. Low, X. Liu, H. Yu, 2006 .

A statistical model for 1-hour- to 24-hour-ahead prediction of hourly ozone concentrations at ground level in Singapore

Youngdeok Hwang, J. Singh, Yasuo Amemiya, 2014 .