1. Baer S. G., C. W. Rice, J. M. Blair. 2000. Assessment of soil quality in fields with short and long term enrollment in the CRP. Journal of Soil and Water Conservation 55:142–146
2. Bair B., 1991. CRP: Boon or bane for rural Kansas? Kansas Farmer 129:5–7
3. Carson M. A., M. J. Kirkby. 1972. Pages 475 in Hillslope form and process. Cambridge University Press, Cambridge
4. Davis J. 1986. Statistics and data analysis in geology. Wiley, New York
5. Desmet P. J. J., G. Govers. 1995. GIS-Based simulation of erosion and deposition patterns in an agricultural landscape: a comparison of model results with soil map information. Catena 25:389–401