1. Allan, H. A. (1984). Structural design of buried rigid pipelines a comparative study of international practice. In International conference on the planning, construction, maintenance & operation of sewerage systems, Reading, UK, September 1984
2. Anand, S. C. (1974). Stress distributions around shallow buried rigid pipes. Journal of the American Society of Civil Engineers, Structural Division, ST1, January
3. Anderson, D., & Cullen, N. (1982). Sewer failures 1981, the full year. WRc External Report No 73E
4. ASCE (1982). Gravity sanitary sewer design and construction, ASCE
5. Bahmanyar, G. H., & Edil, T. B. (1983). Cold weather effects on underground pipeline failures. In Proceedings of conference on pipelines in adverse environments, San Diego, USA