V. E. Ékman
- Determining the lower plastic limit of soil by pressing. Dans: Soil Mechanics and Foundation Engineering, v. 2, n. 2 (mars 1965). (1965):
- Number of samples required to determine standard values for the physical characteristics of soils. Dans: Soil Mechanics and Foundation Engineering, v. 3, n. 2 (mars 1966). (1966):
- Precision of determining settlement tendency of soils. Dans: Soil Mechanics and Foundation Engineering, v. 10, n. 3 (mai 1973). (1973):