J. Powell, C.H. Shields, Roger Frank, Jean Claude Dupla, K.H. Mokkelbost. A cone pressuremeter method for design of axially loaded piles in clay soils.
50 years of pressuremeters International Symposium (ISP5-Pressio 2005), Aug 2005, Marne-la-Vallée, France. pp.547-561.
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