1. Hydraulic properties of porous materials;Brooks,1964
2. An Introduction to the Physical Basis of Soil Water Phenomena;Childs,1969
3. The permeability of porous materials;Childs;Proceedings of the Royal Society,1950
4. Hysteresis in moisture content-suction relationships in soils;Collis-George;Proceedings of the National Academy of Sciences (India, Allahabad),1955
5. Studies in the physical properties of soils II;Haines;Journal of Agricultural Science,1925