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2. Bennett, D., Cording, E.J., 2000. Jacking loads and ground deformations associated with microtunneling. No-Dig 2000 Conference, April 9-12, California, pp.19-35.
3. Decision Support System for Microtunneling Applications
4. Coller, P., Staheli, K., Bennett, D., Post, R., 1996. A review of jacking forces by both theoretical and empirical methods as compared with 20 years of practical experience. Proceedings of International No-Dig'96, April, New Orleans, pp.126-150.