1. Nishihara, T., Osuka, K., & Tamura, I. (2010, August). Development of a simulation model for inner-gas-pipe inspection robot: SPRING. In Proceedings of SICE Annual Conference 2010 (pp. ;902-904). IEEE. Patent number: 978 (2010).
2. Kurata, M., Takayama, T., &Omata, T. (2010, September). Helical rotation in-pipe mobile robot. In 2010 3rd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics (pp. 313–318). IEEE.(2010).
3. Lim, J., Park, H., Moon, S., & Kim, B.(2007, December).Pneumatic robot based on inch worm motion for small diameter pipe inspection. In 2007 IEEE International Conference on Robotics and Biomimetics (ROBIO) (pp. 330–335). IEEE.(2007).
4. Qiao, J., Shang, J., & Goldenberg, A. (2012). Development of inchworm in-pipe robot based on self-locking mechanism. IEEE/ASME Transactions on Mechatronics, 18(2),799–806.(2012).
5. Kwon, Y.S., Lee, B., Whang, I.C., & Yi, B.J.(2010, October). In 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems (pp. 2850– 2855).IEEE.