1. Geotechnical properties of Norwegian clay;Bjerrum;Géotechnique,1954
2. Comparison of shear strength characteristics of Normally consolidated clay;Bjerrum,1960
3. Multivariate Statistics (A Practical Approach);Flury,1988
4. Testing levee in Hachirogata reclamation;Fujita;Tsuchi-to-Kiso, JSSMFE,1960
5. Mechanical characteristics of ground materials;Hirata,1985