1. Consolidation of clay soil by means of atmospheric pressure;Kjellman,1954
2. Preloading by vacuum—current prospects;Holtz;Transp. Res. Board Records,1975
3. Soil improvement techniques in Japan;Aboshi,1984
4. Reclamation with clayey soils and method of earth spreading on the surface;Watari,1984
5. Improvement of soft ground bearing capacity using synthetic meshes;Yamauchi;Geotextiles and Geomembranes,1985