1. Standard test method for one-dimensional consolidation properties of soils;ASTM D 2435-90;Annual Book of ASTM Standards,1993
2. The micromorphological soil-investigation work of Dr. Lafeber;Barton,1974
3. Physical and geotechnical properties of soils;Bowles,1984
4. Fabric and Mineral Analysis of Soils;Brewer,1976
5. The determination of the pre-consolidation load and its practical significance;Casagrande,1936