The following publications are possibly variants of this publication:
- Strategy for Navigation Inside Pipelines with Differential-Drive Inpipe RobotSe-gon Roh, Hyoukryeol Choi. icra 2002: 2575-2580
- In-pipe inspection robot system with active steering mechanismSungMoo Ryew, S. H. Baik, S. W. Ryu, Kwang Mok Jung, Se-gon Roh, Hyouk Ryeol Choi. iros 2000: 1652-1657 [doi]
- Development of the untethered in-pipe inspection robot for natural gas pipelinesJaejun Park, Jeong Whan Moon, Hyoungkwon Kim, Seongcheol Jang, Dae Gyeong Kim, Kitak Ahn, SungMoo Ryew, Hyungpil Moon, Hyouk Ryeol Choi. urai 2013: 55-58 [doi]
- An Active Steering Soft Robot for Small-Bore T-Branch PipelineTianbo Li, Yang Yang, Yonggan Liu, Yongjian Zhao, Yan Peng, Jun Ke, Yuyi Zhai. icira 2019: 556-567 [doi]
- Differential-drive in-pipe robot for moving inside urban gas pipelinesSe-gon Roh, Hyouk Ryeol Choi. trob, 21(1):1-17, 2005. [doi]
- Landmark detection methods for in-pipe robot traveling in urban gas pipelinesDong-Hyuk Lee, Hyungpil Moon, Hyouk Ryeol Choi. robotica, 34(3):601-618, 2016. [doi]