1. Kulhawy F.H. and Mayne P.W. (1990). "Manual on Estimating Soil Properties for Foundation Design." EPRI EL-6800 prepared by Cornell University Ithaca New York.
2. U.S. Army Corps of Engineers (USACE) (1994). "Design of Sheetpile Walls." Engineering Manual EM 1110-2-2504.