Design and Evaluation of Vibrating Footwear for Navigation Assistance to Visually Impaired People. - Qianli Xu; Tian Gan; Shue-Ching Chia; Liyuan Li; Joo-Hwee Lim; Phyoe Kyaw Kyaw (iThings/GreenCom/CPSCom/SmartData, 2016)