1) Bishop, A.W. and D.J. Henkel (1962): "The measurement of soil properties in the triaxial test," Edward Arnold, London.
2) Bjerrum, L. (1973): "Problems of soil and construction on soft clays and structurally unstable soils (collapsible, extensive and others)," 8th. ICSMFE, pp. 111-159.
3) A. Nakase, M. Kobayashi and K. Katsuno (1971): "Change in undrained shear strength of saturated clays through consolidation and rebound," Report of the Port and Harbor Research Institute, Vol.18, No.4 (in Japanese).