1. Internal structure of tilled soil;Dexter;J. Soil Sci.,1976
2. The structure of beds of spherical particles;Dexter;J. Soil Sci.,1978
3. A stochastic model for the growth of roots in tilled soil;Dexter;J. Soil Scil.,1978
4. Tilth structure and soil physical conditions;Ojeniyi,1978
5. S. O. Ojeniyi and A. R. Dexter, Soil factors affecting the macrostructures produced by tillage, Trans. Am. Soc. agric. Engrs (in press).