A Study on Gathering Staircase Information for Active Staircase Entry of Wheelchair Stair Climbing Assistive Devices. - Su-Hong Eom; Jeon-Min Kang; Ga-Young Kim; Eung-Hyuk Lee (ICINCO (1), 2023)

A Method of Extending the Transmission and Reception Range of Ultrasonic Sensors for Stable Following in a Narrow Indoor Space. - Ga-Young Kim; Su-Hong Eom; Eung-Hyuk Lee; Jeon-Min Kang (ICEIC, 2024)