Overlap Makes Perfect: Designing a Meta-Tutor With Live Corrective Feedback for Ubiquitous Motion Learning. - Yue Qian; Tianjun Wu; Yong Zhou; Xueyin Fang; Yong Cheng; You Huang; Lingbing Zeng (SmartWorld/UIC/ScalCom/DigitalTwin/PriComp/Meta, 2022)