1) Finn, W.D.L. (1972): "Liquefaction of sands," Proc. International Conf. on Microzonation for Safer Construction, Univ. of Washington, Seattle, Vol. II, pp. 529-544.
2) Fujita, K. (1973): Evaluation and Application of Soil. Test Results, Chapter 2, Standard Penetration Tests, Japanese Society of Soil Mechanics and Foundation Engineering, pp. 29-76. (in Japanese)