1. Cousineau L., & Miura N. American Society of Civil Engineering (1998)
2. Unpublished Thesis Mahbub, R., Queensland University of Technology, Australia (2008)
3. Kang T.-K., Nam C., Lee U.-K., Doh N. L., & Park G.-T. School of Electrical Engineering, pp 670-671 (2011)
4. Balaguer C. Proceedings of International Symposium on Automation and Robotics in Construction (2004).
5. Construction Arai, T., pp 3-7 (1994)