1. Another look at gravity platform foundations;Butterfield,1981
2. The load displacement response of rigid retaining wall foundations;Butterfield,1992
3. A new approach to safety factors for shallow foundations;Butterfield,1993
4. Cyclic plate bearing tests;Butterfield;Journal of Terramechanics,1980
5. A complete three-dimensional failure envelope for shallow footings on sand;Butterfield;Geotechnique,1994