1. The “Compozer”;Aboshi;a method to improve characteristics of soft clays by inclusion of large diameter sand columns. C.R. colloque int. sur le renforcement des sols. Paris,1979
2. The lateral pressure and the resistance of clay and the supporting power of clay foundations;Bell,1915
3. Die anfangstraglast von schottersäulen im bindigen untergrund;Brauns;Die Bautechnik,1978
4. Lime columns in theory and practice;Broms;Proc. Inter. Conf. of Soil Mech., Mexico,1982
5. Reinforcing of soft cohesive soils with stone columns;Hughes;Ground engineering, p.,1974