Kim, Do ik 2024-01-12T06:57:17Z 2024-01-12T06:57:17Z 2022-01-14 2011-08 https://pubs.kist.re.kr/handle/201004/80457 IEEE Stair Boundary Extraction using the 2D Laser Scanner Conference 1 International Conference on Mechatronics and Automation (ICMA 2011) International Conference on Mechatronics and Automation (ICMA 2011) CC ICMA 2011