1. The Physics of Blown Sand and Desert Dunes;Bagnold,1941
2. Sand movement by wind;Belly,1964
3. Measurements for Terrestrial Vegetation;Bonham,1989
4. Directions for making mechanical analysis of soils by the hydrometer method;Bouyoucos;Soil Science,1936
5. Application of the line-intercept method in sampling range vegetation;Canfield;Journal of Forestry,1941